Services
Materials Laboratory Tests and Product Evaluation
Materials Laboratory Tests and Product Evaluation
Twining Concrete Insight provides a comprehensive scope of tests on concrete, materials used for concrete, mortars, grouts, portland cement products, concrete roof fill materials, etc. Our certified laboratories can assist you in demonstrating compliance with ASTM standards, ACI building codes, Greenbook, Caltrans specifications, FAA specifications, USACE specifications, and/or requirements of other local or federal agencies.
Concrete
- Laboratory trial batch of concrete (ASTM C192)
- Slump flow of self-consolidating concrete (ASTM C1611)
- Static segregation of self-consolidating concrete (ASTM C1610)
- Compressive strength (ASTM C39)
- Splitting tensile strength (ASTM C496)
- Drying shrinkage (ASTM C157, AASHTO T160)
- Coefficient of thermal expansion (AASHTO T336, CRD 39)
- Tensile performance of fiber-reinforced concrete using double-punch loading (Draft ASTM)
- Creep (ASTM C512)
- Acid-soluble chloride (ASTM C1152)
- Chloride diffusion coefficient (ASTM C1556, NT Build 492)
- Density, absorption, and voids in hardened concrete (ASTM C642)
- Surface electrical resistivity of concrete (AASHTO TP95)
- Laboratory development of strength-maturity curve (ASTM C1074)
- Air void systems in hardened concrete (ASTM C457)
- Insoluble residue analysis (ASTM C1324)
- Concrete setting time (ASTM C403)
- Passing ability of self-consolidating concrete by J-ring (ASTM C1621)
- Bleeding of concrete (ASTM C232)
- Flexural strength (ASTM C78)
- Static modulus of elasticity (ASTM C469)
- Restrained expansion (ASTM C878)
- Flexural toughness of fiber-reinforced concrete (ASTM C1609, EN 14651)
- Cracking resistance (ASTM C1581)
- Water-soluble chloride (ASTM C1218)
- Rapid chloride permeability (ASTM C1202)
- Concrete formation factor (AASHTO 358)
- Bulk electrical resistivity of concrete (ASTM C1876)
- Density of structural lightweight concrete made in the laboratory, equilibrium or oven dry method (ASTM C567)
- Petrographic exam on hardened concrete (ASTM C856, ASTM C1723)
- W/CM determination (NT Build 361)
Cement and Cementitious Materials
- Portland cement (ASTM C150)
- Shrinkage-compensating cement (ASTM C845)
- Rapid hardening hydraulic cement (ASTM C1600)
- Fly ash and natural pozzolan (ASTM C618)
- Silica fume (ASTM C1240)
- Restrained expansion of Type K cement mortar (ASTM C806)
- Sulfate resistance of Portland cement (ASTM C452)
- Effectiveness of Pozzolan & Slag Cement in Mitigating Expansion due to ASR (ASTM C441)
- Portland limestone cement and other blended hydraulic cement (ASTM C595)
- Other hydraulic cement (ASTM C1157)
- Plastic (stucco) cement (ASTM C1328)
- Slag cement (ASTM C989)
- Alternative supplementary cementitious materials (ASTM C1709)
- Sulfate resistance of hydraulic cement (ASTM C1012)
- Expansion of hydraulic cement mortar in water (ASTM C1038)
Aggregate
- Abrasion resistance (ASTM C131)
- Cleanness value (CTM 227)
- Crushed/fractured particles (ASTM D5821, CTM 205)
- Fine aggregates angularity (ASTM C1252, CTM 234, AASHTO T304)
- Moisture content of soil or rock (ASTM D2216, CTM 226)
- Sieve analysis (ASTM C136, CTM 202)
- Sieve with Hydrometer (ASTM D422, D7928, CTM 203)
- Specific gravity and absorption (ASTM C127, ASTM C128)
- Bulk density and voids in aggregates (ASTM C29, CTM 212)
- Evaluation of alkali-silica reactivity of aggregates and aggregate-cementitious combinations (ASTM C1260, ASTM C289, ASTM C1293, ASTM C1567, ASTM C1778)
- Qualification of lightweight aggregates for use in concrete (ASTM C330)
- Petrographic examination of aggregates (ASTM C295)
- Resistance of rock to freezing and thawing (CRD-C 144)
- Clay lumps and friable particles (ASTM C142)
- Chloride and sulfate content (CTM 417, CTM 422)
- Durability Index (ASTM D3744, CTM 229)
- Flat and elongated particles (ASTM D4791)
- R Value (ASTM D2844, CTM 217)
- No. 200 wash (ASTM D1140, CTM 202)
- Soundness (ASTM C88)
- Swell/Settlement potential (ASTM D4546)
- Lightweight particles in aggregates (ASTM C123)
- Qualification of aggregates for use in concrete (ASTM C33)
- Aggregate certification for deleterious materials per USACE scope
- Scratch hardness of aggregates (CRD-C 130)
Chemical Admixtures for Concrete
- Chemical admixtures for concrete (ASTM C494)
- Air-entraining admixtures for concrete (ASTM C260)
Mortars, Grouts, and Portland Cement Products
- Mortar for unit masonry (ASTM C270)
- Packaged, Dry, Rapid-Hardening Cementitious Materials for Concrete Repairs (ASTM C928)
- Sampling and testing grout for masonry (ASTM C1019)
- None-shrink grout: height change at early age (ASTM C827)
- Bond strength by slant shear (ASTM C882)
- Packaged Dry, Hydraulic-Cement Grout Non-shrink (ASTM C1107)
- Mortars for plain and reinforced unit masonry (ASTM C780)
- Non-shrink grout: height change after final set (ASTM C1090)
- Compressive strength of mortar cubes (ASTM C109)
Concrete Roof Fill: Gypsum, Vermiculite, Perlite, Lightweight Insulating Concrete, etc.
- Compression test and lightweight insulating concrete (ASTM C495)
- Compressive strength of gypsums, gypsum plasters, and gypsum concretes (ASTM C472)
- Air-dry density of gypsums, gypsum plasters, and gypsum concretes (ASTM C472)
We Use The Following Techniques
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