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Thickness of the concrete should be monitored and controlled by way of checking on any concrete slump. Slump value is used as a guide precision of the amount of water use in conjunction with water cement factor to be achieved. Value of the strength and durability of concrete is a function of many factors, including the mixed appeal, quality of materials, methods of implementation of the casting, finishing execution, the temperature . From the results of laboratory studies to achieve the specific gravity of 2.727 t/m3 Tenggarong sand, coarse aggregate / crushed stone protruding by 2.73 t/m3, and coarse aggregate / crushed stone from Hammers of 2.766 t/m3. And for the water content of fine aggregate / sand from Tenggarong at 1.511%, moisture content of coarse aggregate / crushed stone from protruding by 1.265%, and moisture content of coarse aggregate of Hammer of 1.135%. And for the aggregate abrasion value of coarse / rock protruding from the rupture of 26.74%, and for coarse aggregate / crushed stone from Hammers of 26.2%.
From the results of laboratory research and testing after the test object from each of the quality of concrete as a quality control of concrete quality inspection and quality of the concrete implementation of quality criteria.
Key words: value of compressive strength of concrete, concrete age.
