Shrinkage-compensating and high-ductility cement-based composite material
A composite material and shrinkage compensation technology, applied in the field of concrete materials, can solve the problems of large dry shrinkage in the hydration hardening process of ECC, restrictions on popularization and application, and limitations in adaptability, etc., to improve various performance indicators, low shrinkage characteristics, and high strength Effect
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[0024] Example 1: The volume ratio of polyester fiber is 0.9%, and other components except fiber are recorded as 60 parts by weight of cement, 10 parts of silica fume, 40 parts of fly ash, 7 parts of expansion agent, and water reducing agent. 0.4 parts, 50 parts sand, 35 parts water.
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[0025] Example 2: The volume ratio of steel fiber is 1.8%, and other components except fiber are recorded as cement 58 parts, silica fume 5 parts, fly ash 50 parts, expansion agent 8 parts, and water reducing agent 0.3 parts in weight ratio , 45 parts of sand, 33 parts of water.
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[0026] Example 3: The volume ratio of polyester fiber is 1.2%, and other components except fiber are recorded as cement 58 parts, fly ash 50 parts, expanding agent 8 parts, water reducing agent 0.3 parts, sand 48 parts in weight ratio , 30 parts of water.
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