CONCRETE TEST
Different kinds of concrete test have been defined out such as below:
COMPRESSIVE STRENGTH TESTS | Strength tests are required for one or both of the following purpose: 1. To check the potential strength of the concrete under controlled conditions against the desired strength; and 2. To establish a strength-age relationship for the concrete under job conditions as a control for construction operations or the opening of the work.
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FLEXURAL STRENGTH TESTS | These routine tests are usually made only on paving jobs and are tested at the job site. The value of the standard flexural test results depend entirely on uniform adherence. Tests are normally made at the standard ages of 7 and 28 days. High early strength concrete may require additional beams to verify opening strengths.
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CONSISTENCY (SLUMP) TESTS | Check and control the consistency of the concrete during each pour.
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AIR CONTENT TESTS | The slump test is a measure of the consistency of the concrete.
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UNIT WEIGHT (DENSITY) TEST | The unit weight (density) test is a measure of the weight per cubic meter (cubic foot) of freshly mixed concrete. By knowing the unit weight of the concrete, other information can be determined such as the concrete yield and water content for microwave oven testing.
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TEMPERATURE TEST | The Inspector should determine and record the concrete temperature at time of placement. Unless the Special Provisions for the Contract provide otherwise, the concrete temperature requirement is in the range of 10 to 30°C.
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15 March 2012 at 06:35
sorry， i not so understand what the test talking about...