PHYSICAL TESTING
In conjunction with petrographic examinations and other laboratory tests, we also do the following physical testing of construction materials on as-needed basis:
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Compressive strengths, e.g., ASTM C 42 for concrete
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In situ strength testing by Impact Hammer
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Cold and Boiling-Water Absorption and Saturation Coefficient of Masonry Units (e.g., ASTM C 67)
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Cold-Water Absorption of Dimension Stones (ASTM C 97)
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Density, Absorption, Specific gravity and Volumes of Permeable Voids (ASTM C 642)
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Length Change Measurements with a Digital Length Comparator (ASTM C 157) to Determine Length Changes Due to Controlled Shrinkage or Expansions
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Length Change Measurements of Cement-Aggregate Combinations During Accelerated Expansion Tests due to Alkali-Silica Reactions of Mortar Bars (e.g., ASTM C 1260, ASTM C 1567) or Concrete Prisms (ASTM C 1293)
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Length Change Measurements of Rock Prisms for Alkali-Carbonate Reactions (ASTM C 586)
LENGTH CHANGE MEASUREMENTS
- SHRINKAGE
![Length change measurements.png](https://static.wixstatic.com/media/df6185_a6f8ba27d81b453196533cdbe6674bf8~mv2.png/v1/fill/w_920,h_1119,al_c,q_90,usm_0.66_1.00_0.01,enc_auto/Length%20change%20measurements.png)
LENGTH CHANGE MEASUREMENTS
ACCELERATED ALKALI-SILICA REACTION
MORTAR BARS (ASTM C 1260)
![Length change measurements ASR.png](https://static.wixstatic.com/media/df6185_37f2cec9244244a3a96de65d7fe1a615~mv2.png/v1/fill/w_47,h_47,al_c,q_85,usm_0.66_1.00_0.01,blur_2,enc_auto/Length%20change%20measurements%20ASR.png)