Concrete Testing
Concrete test blocks are a key focus in engineering material testing, so it is very common to send them for inspection. There are strict requirements for the sample size of concrete test blocks. Generally, the standard size of concrete standard test pieces is 150*150*150, and the non-standard test piece sizes are usually 100*100*100 and 200*200*200, with three pieces in each group.
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Product Introduction
Concrete Testing
Concrete test blocks are a key focus in engineering material testing, so it is very common to send them for inspection. There are strict requirements for the sample size of concrete test blocks. Generally, the standard size of concrete standard test pieces is 150*150*150, and the non-standard test piece sizes are usually 100*100*100 and 200*200*200, with three pieces in each group.
Testing items
Slump, Vebe consistency, setting time, bleeding rate, pressure bleeding rate, apparent density, splitting tensile strength, flexural strength, air content, cementitious material corrosion coefficient (raw material performance), alkali content, trioxide sulfur content, chloride ion content, steel bar corrosion in concrete, alkali-aggregate reaction resistance, air permeability coefficient, 56-day sulfate resistance grade, ordinary mix proportion design (including 7-day, 28-day, 56-day compressive strength, slump, air content), shotcrete mix proportion design, mortar mix proportion design, 7-day compressive strength, 28-day compressive strength, 56-day compressive strength, static elastic modulus, dynamic elastic modulus, freeze-thaw resistance grade (quick-freezing method) 200 cycles, impermeability grade: chloride ion permeability (electric flux method), impermeability grade: chloride ion permeability (chloride ion diffusion coefficient method), water permeability resistance, early cracking test, 28-day carbonation performance, 56-day carbonation performance, shrinkage ratio (56-day), restrained expansion rate (about 45 days), bubble spacing coefficient
Testing Standard
GB/T 16925-1997 Test methods for concrete and reinforced concrete drainage pipes
GB/T 19496-2004 Test method for compressive strength of centrifugal high-strength concrete by core drilling
GB/T 50080-2016 Standard for test methods of properties of ordinary concrete mixtures
GB/T 50081-2019 Standard for test methods of mechanical properties of ordinary concrete
GB/T 50082-2009 Standard for test methods of long-term performance and durability of ordinary concrete
GB/T 24763-2009 Steel slag concrete
GB/T 18046-2017 Fly ash for use in cement and concrete
GB/T 26751-2011 Silica fume for mortar and concrete
GB/T 20491-2006 Steel slag powder for use in cement and concrete
GB/T 18046-2017 Fly ash for use in cement and concrete
GB/T 27690-2011 Recycled fine aggregate for mortar and concrete
GB/T 21120-2007 Synthetic fibers for cement concrete and mortar
GB/T 21539-2008 Natural zeolite powder for cement concrete and mortar
GB/T 22795-2008 Concrete bricks
GB/T 23265-2009 Cement concrete tiles
GB/T 23662-2009 Concrete curb stones
GB 11968-2006 Autoclaved aerated concrete blocks
GB/T 21144-2007 Solid concrete bricks
GB/T 15229-2011 Lightweight aggregate concrete small hollow blocks
was established in 2011. As a national high-tech enterprise recognized by the Zhejiang Provincial Higher People's Court as a judicial authentication institution for construction engineering quality, we specialize in structural performance testing and safety assessment of construction projects, special equipment, communication towers, electromagnetic environments, large bridges, and building safety appraisal.
The company has more than 100 professional and technical personnel, over 90% of whom hold various medium and senior technical certificates. Equipped with complete testing equipment worth over RMB 10 million, our business scope covers the whole country.
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