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Receive designs, house inspections, building inspections by engineers, architects and building inspectors in Phuket.

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This logo Guaranteed quality of work Because we are a team of engineers, architects and building inspectors.

which has a license to practice controlled engineering Legal entity type from the Council of Engineers

To give customers confidence in the standards of architectural quality inspection.

Engineering, all sizes, all types.
By a team of civil engineers and joining related engineering teams

Contact to request service, call 09-2561-5692

Line ID@manbuilding

Provide consultancy for designing and layout planning buildings, offices, hotels, resorts, condominiums, with certified

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Provide consultancy for designing and layout planning buildings, offices, hotels, resorts, condominiums, with certified safety assurance by chartered architect.

M.A.N. Building inspection & Design Co.Ltd : The registration Juristic number: 0835563011294. We are an organization that brings together a team of engineers, architects, and building inspectors, ready to provide comprehensive consultation throughout every stage of the construction process, up to the delivery to the clients. We have Thai professional engineering license, juristic type by the council of engineer registration number น.ต.1868/64.

Surveying and Geotechnical Design

Surveying involves topographic mapping, site surveying for construction, layout planning, etc. We also provide structural design services and modification or correction of designs by licensed engineers and professional engineers.

  • Architecture license, juristic type by the architect council of Thailand registration number น.036-65.
  • Certification as building inspectors, juristic type, by the department of public works and town & country planning registration number น.0329/2564.

To assure customers of the standards in inspecting the quality of architectural and engineering, structures of all sizes and types, by our team of engineers: Professional civil engineer, Senior professional civil engineer, Professional environmental engineer, Professional Industrial Engineer, Professional electrical engineer, Professional mechanical engineer, Professional Architect, Chartered Architect, and certified building inspectors.

Contact us. (Tel). 09-2561-5692.

Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

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A company that inspects private buildings and government office buildings.
Building Inspection

A company that inspects private buildings and government office buildings.

M.A.N. Building inspection & Design Co.,Ltd

A company that inspects private buildings and government office buildings. Phuket. Construction consulting and project management company, Phuket Building inspection M.A.N. Building inspection & Design Co.,Ltd : The registration Juristic number: 0835563011294 We provide building inspection services with the main objective of assessing the structural integrity and safety of building usage and the building's equipment systems. The inspector is responsible for inspecting, observing, and reporting on the structural integrity, service and convenience systems, health and environmental systems, fire prevention and suppression systems, and testing the performance of systems related to fire escape. This includes managing safety for the structural integrity and safety of the building in us.   The history and background of building inspections Under section 32, subsection (3) of the Building Control Act of 2522 B.E., as amended by the Building Control Act (Version 3) of 2536 B.E. The regulation empowers the minister to issue ministerial regulations specifying the types of buildings that must have engineering or architectural inspectors, In accordance with the circumstances. To conduct an inspection of the building and its structural condition and the building's equipment systems. For the benefit of structural stability and safety in building usage, to request a certification of building inspection. Otherwise, it may be subject to penalties under Sections 46 and 55 of the Building Control Act, to the extent of closure and prohibition of the entire building or certain parts of the building. And shall be liable to imprisonment not exceeding 3 months, a fine not exceeding 60,000 Baht, or both imprisonment and fine, with an additional daily fine of 10,000 Baht until the inspection and report are completed and submitted to the local authorities with effect on the 9 types of buildings, subsequent to the announcement in the Royal Gazette on December 29, 2548 B.E., within a period of 2 years   Buildings that require inspection according to the Building Control Act. There are a total of 9 types of buildings within the scope of the inspection., including: High-rise buildings (with a height of 23 meters or more) Large extra building (buildings with a total floor area of 10,000 square meters or more) Assembly Buildings with an area of 1,000 square meters or more, or with a capacity for 500 people or more. Theaters Hotels with a minimum of 80 rooms or more. entertainment spot with an area of 200 square meters or more. Condominiums or residential buildings (dormitories, apartments) with an area of 2,000 square meters or more. **** Building in the 7th tier has a provision, transitory, except for 7 years from the date of the Ministry's regulation announced on October 25, 2005, For areas between 2,000-5,000 square meters and except for 5 years for buildings exceeding 5,000 square meters. **** Factory buildings with a height of more than 1 floor and an area of 5,000 square meters or more. Signs or structures built for installation or erection, which have a height of 15 meters or more from the ground, or an area of 50 square meters or more, or signs installed on roofs or canopies with an area of 25 square meters or more.   Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Annual electrical system inspection
Building Inspection

Annual electrical system inspection

M.A.N. Building inspection & Design Co.,Ltd

Annual electrical system inspection Phuket Company that provides annual electrical system inspections in Phuket Single house-townhome-condo newly built before transfer, Phuket M.A.N. Building inspection & Design Co.,Ltd : The registration Juristic number: 0835563011294 .We provide inspection services with safety certification, electrical systems, and electrical equipment (Ministry of Labor). According to the ministerial regulation 'Establishing standards for management, operation, and safety, occupational health, and environmental conditions in electrical work, B.E. 2558. Clause 12: Employers must ensure that there is inspection and maintenance of electrical systems and electrical equipment to ensure safe operation. This applies to individuals registered under Section 9 or legal entities licensed under Section 11 of the Occupational Safety, Health and Environment Act B.E., BE 2554, as appropriate. The person conducting the inspection is responsible for recording and certifying the results. This is to facilitate safety inspectors to verify, in accordance with the criteria, methods, and conditions specified by the Director's announcement. Announcement of the department of welfare and labor protection regarding criteria, procedures, and conditions for recording and certifying electrical systems and electrical appliances inspection results. Clause 2 requires employers to arrange for periodic inspections and maintenance of electrical systems and electrical appliances in workplaces to ensure safe operation at least once a year. Employers must also keep records of inspection results and certify the electrical systems and electrical appliances. According to the format at the end of this announcement, if the employer has conducted an inspection and certification of electrical systems and electrical appliances in compliance with laws related to factories or laws related to building control, with an electrical engineer recording the inspection results, it is considered an inspection and certification of electrical systems and electrical appliances under this announcement. In this regard, the person preparing the inspection and certification record must be an individual registered under Section 9 or a legal entity licensed under Section 11 of the Occupational Safety, Health, and Environment Act B.E. 2554, as appropriate. Clause 3 requires the employer to notify the inspection results and certify the electrical systems and electrical appliances to the safety inspection personnel within the area of responsibility within fifteen days from the date of inspection." Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Reparation for existing building structures Phuket.
Building Inspection

Reparation for existing building structures Phuket.

M.A.N. Building inspection & Design Co.,Ltd

Reparation for existing building structures Phuket. Wear or failure of structural we can be categorized into 3 cases based on the failure causes. The structural failure is due to changes in usage, The building was constructed to be a residence. However, after its opening, there was a change in usage to a shop house. The change in usage involves adding additional load to the structure. This is the cause that resulted in structural wear or failure. Therefore, it is advisable to repair and reinforce the structure to have a load-bearing capacity at least equal to the original structure before failure.     Structural failure due to a fire Structures that have been exposed to fire for an extended period often lose strength in supporting weight. Although, concrete has insulating properties and can withstand heat well. However, when concrete is exposed to prolonged high temperatures, it may lose adhesion, peel off, and break. Making the internal reinforcing steel directly heat-resistant. When the reinforcing steel is exposed to high temperatures up to 425 degrees Celsius, the strength of the reinforcing steel rapidly decreases, leading to structural failure. Therefore, repairing structures damaged by fire is a reinforcement of the structural strength to restore it to its original condition, ensuring safety for future use or enhancing its strength beyond the original specifications.   The most frequently encountered structural damage. It is a condition known as "explosive spalling or bursting of concrete cover" or "concrete spalling which occurs when concrete has visible cracks or has a minimal concrete covering, allowing water or moisture to penetrate through to the reinforcing steel, causing corrosion. The corrosion can force the concrete to crack, chip, or spall, leading to potential structural damage. The repair process depends on the extent of damage to the reinforcing steel and the quality of the concrete.   Methods for Repairing Columns: There are various methods for repairing columns, depending on the nature of the damage, such as:   Enlarge the cross-sectional area of the column and beam to make them larger. Increase the covering distance for the concrete of columns and beams. Increase the shear reinforcement to enhance the shear capacity for added strength against shear forces. Implement various protective systems to prevent additional corrosion in the future. Steps for Repairing Concrete Columns and Beams   Remove the damaged or deteriorated concrete completely. If it is necessary to remove a significant amount of concrete from columns or beams, resulting in a substantial loss of the concrete cross-section, temporary supports must be installed during the repair process. Remove all rusted portions of the steel bar. If the corrosion exceeds 15% of the cross-sectional area of the steel bar, new reinforcing steel splices must be welded in as replacements. The size of the new reinforcing steel should not be smaller than the original. If using the original reinforcing steel, apply an anti-corrosion solution to prevent further rusting in the steel. Perform formwork or enter the construction form before closing. Before closing the formwork, apply a concrete bonding agent. Repair the structure with Repaired Mortar according to the company's specified proportions, which consist of grout, structural lime, and aggregate (stone chips). This can be done using the concrete formwork closure method or by coating with Repaired Mortar Wait for the specified demolding time and proceed to plaster the surface with lime until it is smooth.   Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Design all architectural styles, Phuket Ph
Building Inspection

Design all architectural styles, Phuket Ph

M.A.N. Building inspection & Design Co.,Ltd

Design all architectural styles M.A.N. Building inspection & Design Co.,Ltd : The registration Juristic number: 0835563011294.We specialize in design and construction services, factory contracting, offices, establishment of factory systems, warehouse design, condominium and resort construction, house building, and building renovations for both offices and residences with certified safety assurance chartered architect who are experts in the field. We have years of experience in the construction industry, making us experts in the field. This expertise enables us to provide consultation and plan work that is well-suited to a reasonable budget, within the specified timeframe for each construction project The engineering and architect team will meet with the client, ready to conduct on-site surveys to gather design-relevant information according to the client's requirements. When the customer agrees, we will sign the contract to formalize the agreement. We will then proceed with designing, drafting plans, and creating 3D models, along with estimating the budget. The engineering team, on behalf of the company, manages the entire process, taking responsibility and control for both the design and construction phases. We oversee every step until completion, ensuring the efficient delivery of results to our clients We design and draft factory plans, submit construction drawings (for permit applications and Bill of Quantities), and prepare essential documents related to building construction. This includes detailed explanations, construction materials, and comprehensive cost estimates until project completion Under the authority of the Architects Act of 2000, the Council of Architects issued license number N.036-65 to M.A.N. Building inspection & Design Co.Ltd .with registration number 0835563011294. architecture license, type juristic by the architect council of Thailand with individuals holding a professional license in architecture as a legal entity. Mr. Narin Ruangdechawiwat (ส-สถ 2890) Mr. Phithak Krotchomphu (ส-สถ 3784) As a legal entity in the professional license in architecture from September 9, 2022, to September 8, 2025 Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

All types of building structure, Phuket
Building Inspection

All types of building structure, Phuket

M.A.N. Building inspection & Design Co.,Ltd

All types of building structure. Phuket M.A.N. Building inspection & Design Co.,Ltd : The registration Juristic number: 0835563011294. We specialize in design and construction services, factory contracting, offices, establishment of factory systems, warehouse design, condominium and resort construction, house building, and building renovations for both offices and residences with certified safety assurance by Senior professional civil engineer who are experts in the field. We have years of experience in the construction industry, making us experts in the field. This expertise enables us to provide consultation and plan work that is well-suited to a reasonable budget, within the specified timeframe for each construction project with safety certification The engineering and architect team will meet with the client, ready to conduct on-site surveys to gather design-relevant information according to the client's requirements. When the customer agrees, we will sign the contract to formalize the agreement. We will then proceed with designing, drafting plans, and creating 3D models, along with estimating the budget. The engineering team, on behalf of the company, manages the entire process, taking responsibility and control for both the design and construction phases. We oversee every step until completion, ensuring the efficient delivery of results to our clients We design and draft factory plans, submit construction drawings (for permit applications and Bill of Quantities), and prepare essential documents related to building construction. This includes detailed explanations, construction materials, and comprehensive cost estimates until project completion   Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Design for renovation of houses and office buildings, Phuket
Building Inspection

Design for renovation of houses and office buildings, Phuket

M.A.N. Building inspection & Design Co.,Ltd

Design for renovation of houses and office buildings, Phuket M.A.N. Building inspection & Design Co.,Ltd : The registration Juristic number: 0835563011294. We specialize in design and construction services, factory contracting, offices, establishment of factory systems, warehouse design, condominium and resort construction, house building, and building renovations for both offices and residences with certified safety assurance by chartered architect and Senior professional civil engineer who are experts in the field. We have years of experience in the construction industry, making us experts in the field. This expertise enables us to provide consultation and plan work that is well-suited to a reasonable budget, within the specified timeframe for each construction project The engineering and architect team will meet with the client, ready to conduct on-site surveys to gather design-relevant information according to the client's requirements. When the customer agrees, we will sign the contract to formalize the agreement. We will then proceed with designing, drafting plans, and creating 3D models, along with estimating the budget. The engineering team, on behalf of the company, manages the entire process, taking responsibility and control for both the design and construction phases. We oversee every step until completion, ensuring the efficient delivery of results to our clients We design and draft factory plans, submit construction drawings (for permit applications and Bill of Quantities), and prepare essential documents related to building construction. This includes detailed explanations, construction materials, and comprehensive cost estimates until project completion   Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Project consultant and construction project management, Phuket
Building Inspection

Project consultant and construction project management, Phuket

M.A.N. Building inspection & Design Co.Ltd

Project consultant and construction project management, Phuket The registration Juristic number: 0835563011294. we provide comprehensive architectural services. From start the project initiation to completion, covering every stage, and ready to deliver the results to our clients. We provide design services, architectural drawings, and collaborate with engineers in all related professional fields in building construction projects. The installation of building electrical systems, sanitary systems, fire alarm (emergency electrical systems), and inspection services until the completion of the building with certified safety assurance by chartered architect registration number: 0835563011294 individuals an architecture license as a legal entity Mr. Narin Ruangdechawiwat (ส-สถ 2890) and Mr. Phithak Krotchomphu (ส-สถ 3784) Construction consulting and management team. We provide services for design, construction permission drawing and shop drawings to be used for contract execution in accordance with the principles of project implementation by construction engineers, skilled craftsmen, controlling operations, selecting quality materials, equipment, tools, and ensuring safety compliance throughout the construction process. This includes adhering to the regulations set by the Architects and Engineers Association, and specialized aspects of each discipline involved in the project. The inspector and certified environmental system by professional environmental engineer. Our engineers have knowledge and expertise in construction project laws, including essential foundational information. This allows them to effectively apply this knowledge to the design and planning of projects or facility expansions. Before commencing work and designing facility layouts, understanding, and adhering to various regulations and standards related to the project are crucial. Safety, sanitation, and environmental regulations governing factories, as well as other relevant laws under the statutory regulations, are standardized and proclaimed in the Thai government gazette. The process of verifying the actual location. To inspect the area intended for the establishment or expansion of a factory to determine if it violates urban planning and related laws. The inspector, along with the environmental system certification signature by professional environmental engineer. We have engineers who specialize in various requirements outlined in Ministerial Regulation No. 2 (B.E. 2535) issued under the Factory Act B.E. 2535 and the Ministry of Industry Announcement.   Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Construction Management
Building Inspection

Construction Management

M.A.N. Building inspection & Design Co.,Ltd

Construction Management Phuket Receive work directly from the project owner to control construction work. M.A.N. Building inspection & Design Co.,Ltd : The registration Juristic number: 0835563011294. We provide construction management services, and the approach to construction management can vary depending on the owner's requirements. The construction manager may come from the design team or be an engineer hired by the project owner to oversee the work on that specific project. The responsibilities in construction management include: Construction supervision to ensure that it complies with all the details and specifications in the construction contract according to industry standards. In cases where the drawings or specifications have discrepancies or can be reasonably anticipated that, even though the work may conform to the drawings, details, and specifications in the contract, upon completion, it is not durable, structurally sound, does not meet industry standards, or is not safe, stop work in that area until a resolution is reached. Record the daily work activities of the contractor and environmental events, along with the results of the work or any work stoppages and the reasons for the stoppages. Provide guidance on carrying out construction work in accordance with best practices. Provide periodic progress reports and promptly inform engineers of any construction deviations from the original design. Coordinate to eliminate conflicts that arise in the construction work. Monitor and inspect the work of the contractor to ensure it aligns with the specified plans, in order to track progress or identify any delays in the construction work. Inspect and oversee safety practices in the workplace.   Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Inspection services for machinery and equipment, with certification provided.
Building Inspection

Inspection services for machinery and equipment, with certification provided.

M.A.N. Building inspection & Design Co.,Ltd

Inspection services for machinery and equipment, with certification provided, Phuket M.A.N. Building inspection & Design Co.,Ltd : The registration Juristic number: 0835563011294. Certification as environmental inspectors, juristic type. Inspector for machinery, equipment, or items used in the factory, with certification. We provide services for inspecting the structural integrity, safety, and suitability for operation of machinery, ensuring minimal vibration and radio noise (which may disturb nearby residents). The machinery must be equipped with necessary safety devices or safeguards, as required and appropriate. In cases where pits or open containers are involved in the machinery operation, there must be sturdy barriers, fences, or railings with a height not less than 100 centimeters from the floor level. Inspection services with certification for gas compressors. The gas compression system must be designed, calculated, and constructed in accordance with accepted standards or undergo safety inspections during operation (with certification by Thai professional engineering license) Inspection and certification services for boilers and steam generators, which use liquids as a heat transfer medium or pressure vessels, including reaction vessels, must be designed, calculated, and constructed in accordance with accepted standards and pass safety inspections (with certification by Thai professional engineering license) Inspection services with certification for dangerous goods containers, such as flammable, explosive, chemical substances, or any other liquid that may pose a threat to people, animals, plants, property, or the environment, with a container size of 25,000 liters or more, must be structurally sound in accordance with accepted standards (with certification by a professional engineer). Additionally, a dam or concrete wall must be constructed around it to contain the specified substances, unless there are multiple containers, in which case a dam capable of containing and restraining the specified materials or chemicals in an appropriate manner must be built. Inspection services with certification for cranes and hoists, including the continuous load-bearing parts, must be structurally sound. There should be a clear weight limit sign indicating the maximum safe load capacity, and it must have safety locks capable of stopping the load at no less than one time the maximum safe load. For electrically powered lifting equipment, there must be devices to stop, lift, and cut off the power supply when the load reaches the specified maximum height. Inspection services with certification for conveyors. Installed above areas where people work, or walk must include the installation of fall protection devices (such as side guards or side grates) and a mechanism to catch falling objects underneath the conveyor (to ensure safety). For conveyors with inclined belts, there must be an emergency stop device to automatically halt the conveyor when necessary. Inspection services with certification for the installation of pipes and equipment for material conveyance through pipes must adhere to accepted industry standards. Inspection and certification services for the factory electrical system (lighting and power) must comply with accepted industry standards (with certification from a licensed professional engineer). Inspection services with certification for facilities that release pollutants or any substances that impact the environment, especially those involving radiation, must have appointed supervisors and workers. Both the supervisor and workers must possess the required knowledge and qualifications as per relevant laws and regulations regarding factory operations and related laws. This includes control measures for the release of pollutants, waste, effluents, and noise generated from the manufacturing processes. Recommendations for waste disposal, pollutants, and unused materials should comply with the regulations issued according to the laws governing factory operations. Discharging wastewater from the factory is prohibited unless the effluent has been treated to meet the characteristics specified by the laws and relevant regulations (if dilution is not used as a method). In cases where there is a wastewater treatment system, the factory must install measuring devices to monitor the quantity of electricity used, specifically for the wastewater treatment system. Daily records of electricity consumption must be maintained. In situations involving the use of chemicals or biological substances in the wastewater treatment system, records of the usage of such substances must also be documented. Do not discharge air pollutants from the factory unless the air has been treated to meet the characteristics specified by relevant laws and regulations. Also, control the temperature levels in the working areas for employees, ensuring that they do not exceed the standard values for light, moderate, and heavy work, as defined by the laws related to factories. Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Inspection and certification of safety, Phuket
Building Inspection

Inspection and certification of safety, Phuket

M.A.N. Building inspection & Design Co.,Ltd

Inspection and certification of safety, Phuket M.A.N. Building inspection & Design Co.,Ltd : The registration Juristic number: 0835563011294.The Department of Welfare and Labor Protection grants a license to Mr. Sitthichai Mechue as a legal entity providing machinery testing services for M.E.N. Building Inspection and Design Co., Ltd. The license number is 0601-03-2565-0148, valid from October 21, 2022, to October 20, 2024, as of October 21, 2022. Inspection at Phuket Airport   Building inspection work Ready to sign certification Engineer qualification level Phuket   Receive building inspection Ready to sign Phuket certification   The machinery that needs to be inspected annually. The Ministry of Industry regulations stipulate standards for managing, operating, and conducting work related to machinery, foundries, and boilers in the workplace regarding safety, occupational health, and the environment, in the year 2021, Section 1, Machinery, Part 1, General, Article 9: Employers must ensure that employees working with machinery inspect the machinery to be in good working condition and safe before use. The following machinery must undergo annual inspections. Inspection services with certification for machinery used in lifting and transportation operations, including forklifts and conveyor belt systems. Inspection services with certification for machinery used in earthwork and road construction, including tractors, backhoes, excavators, soil scrapers, graders, asphaltic concrete pavers, and bitumen distributors or sprayers. Inspection services with certification for machinery used in concrete work, including concrete mixers, concrete vibrators, concrete pumping machines, shotcrete machines, mortar sprayers, and transit-mixer trucks. Inspection services with certification for machinery used in foundation work, including pile drivers, machinery for drilling piles, retaining wall equipment, cement grouting machines, and soil cement column machines. Inspection services with certification for machinery used in excavation, drilling, or trenching work, including air compressor drilling rock machine tunnel boring machine pipe jacking machine backhoe dragline front-end loader. Inspection services with certification for machinery used in excavation, drilling, or trenching work, including jack hammer concrete breaker demolition shears. Inspection services with certification other machinery that may pose risks when operated, as specified by the Director's announcement.   Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.

Schmidt Hammer Test, Phuket
Building Inspection

Schmidt Hammer Test, Phuket

M.A.N. Building inspection & Design Co.,Ltd

Schmidt Hammer Test, Phuket Testing for compressive strength of concrete using a Schmidt Rebound Hammer. M.A.N. Building inspection & Design Co.Ltd : The registration Juristic number: 0835563011294 Schmidt Rebound Hammer Testing Steel scanning works to determine the location   Steel scanning allows us to know the location. Size and spacing of reinforcing steel in concrete for design or drilling into the floor for additions. It takes an expert to test. Schmidt Hammer Test Phuket   Testing the compressive strength of concrete can be done through various methods, including both destructive and non-destructive approaches. The use of the Schmidt Rebound Hammer falls under the category of non-destructive testing (NDT), which was developed by German engineers in 1948. It relies on the principle of mass-spring reflection, and the result displayed on the indicator is known as the Rebound Number. This value is then compared with a table to determine the corresponding Compressive Strength. This process adheres to the standards set by the American Society for Testing and Materials (ASTM) C805.   Testing the compressive strength of concrete using the Schmidt Rebound Hammer is a widely used method nowadays due to its convenience and speed in data collection. However, it has limitations, such as requiring a smooth surface with a minimum thickness of 10 centimeters. Testing Procedure:   Inspect the condition of the surface to be tested. The surface for testing must be smoothed, as uneven surfaces may yield lower Rebound Numbers, while rough surfaces may result in higher Rebound Numbers. Specify the test positions for 16 points, with each point separated by at least 30 mm, as illustrated in the diagram.   Conduct the test using the Rebound Hammer perpendicular to the surface being tested. Record the Rebound Number and the direction of compression, considering four directions: upward, downward, parallel to the surface, and at a 45° angle to the surface. During the test, press the Plunger of the Rebound Hammer against the surface of the concrete until it makes contact and generates an internal impact sound. Note the resulting Rebound Number. On average, the Rebound Number of all 16 values should not deviate by more than ±7 from the mean Rebound Number. If the Rebound Numbers obtained from the test differ from the mean by more than ±7, the data for that test cannot be used to calculate the average. A new test must be conducted, using a different surface for testing, and ensuring it is at least 30 mm away from the previously tested locations, until all values fall within the ±7 range of the mean. Convert the average Rebound Number and the corresponding testing directions into Compressive Strength values by comparing them with the graph illustrating the relationship between Compressive Strength and Rebound Number.   Contact us. (Tel). 09-2561-5692. Line ID@manbuilding , Office hours: Monday to Saturday, 08:00 - 17:00.