2016 Volume 22 Issue 51 Pages 409-414
A new type admixture was developed for a super low drying-shrinkage concrete with water-cement ratio of 40-50%. The properties of fresh and hardened concrete using this admixture and expansive additive were studied by laboratory test and mock-up test. Drying-shrinkage of the super low drying-shrinkage concrete using this admixture was 16-22% less than ordinary concrete. Properties of this hardened concrete, as compressive strength, young’s modulus, tensile strength, durability and carbonation were determined by this experimental tests. Effect of reducing cracks by using this admixture and expansive additive was verified by test on drying shrinkage cracking of restrained concrete and mock-up slab test.
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