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Construction Site Handbook

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[English | 简体] Site Tests

There are quite a lot of site tests to be conducted on construction site before , during or after the execution of a piece of work . Most of these site tests are to be carried out by the laboratory staff , however in some cases some of these tests are to be looked after by the supervisory staff on the job site . This chapter only introduces the scope of work of a site test and describes the preparatory works to be handled by the staff on site . In view of the calculation of the test result , it should be left to the independent laboratory staff to determine .

Site test is used to determine the acceptance of a material or a semi-finished product or the site condition at some specified stage of works before further work is allowed to proceed , or optionally as required by the Engineer in case of query . The individual or collection of acceptable test results does not define the final acceptance of the work but could be used to support the interim performance at various stages . The site staff should bear in mind to clean the testing apparatus after each use , to store and maintain in good condition and to carry out periodical calibration .

A ) For concrete Works
- Sampling of Trial Mix ( at Batching Plant )
- Sampling of aggregates ( at stockpile )
- Sampling of Reinforcement
- Speedy Test ( for moisture content )
- Slump Test ( for workability of concrete )
- Compacting Factor Test ( for self compaction of concrete )
- Temperature Test ( for green concrete )
- Making of Test Cubes ( for Compression Test )
- Sand Patch Test ( for surface texture of rigid pavement )
- Rolling Edge Test ( for surface profile of rigid or flexible pavement )
- Test cores ( for hardened concrete / asphalt concrete )
- Cover metre test ( for reinforced concrete structure )
- Schimt Hammer Test ( for structural concrete )

B ) For Steelwork
- Torque Test
- Pull Out Test ( for cast-in sockets of anchorage system )
- Paint Thickness Test
- Radiographic Test ( for welding )
- Ultrasonic Test ( for welding )
- Magnetic Particle Inspection ( MPI )

C ) For Water Leakage
- Rising Head / Constant Head / Falling Head Test
- Dye Test
- Ponding Test ( for service reservoir / penstock )

D ) For Piling work
- Pile Loading Test ( Kentledge )

E ) For Drainage works
- Visual Inspection
- Smoke Test ( for gravity pipeline )
- Air Test ( for gravity pipeline )
- Water Test ( for gravity pipeline )
- Infiltration Test ( for sewage drainage system )
- Pigging
- Closed Circuit Television ( CCTV )

F ) For Marine works
- Sampling of seabed material ( by probing )
- Sand Content Test ( for seabed material )
- Bar Check Test ( for Echo Sounder )

G ) For Earthworks
- GEO Probe Test ( Drop Hammer Test )
- Proctor Test ( to determine the max dry density and optimum moisture content )
- Sand Replacement Test ( to determine compacted soil condition )
- California Bearing Ratio ( CBR ) Test
- Compaction by Roller ( product spec )

H ) For E&M works

I ) For General Building Works
- Hammer Test ( for tiling work )

Site Tests Sub-Pages