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A platform for research: civil engineering, architecture and urbanism
Low-shrinkage full-hole slag aggregate concrete and preparation method thereof
The invention discloses low-shrinkage whole hole slag aggregate concrete, which is prepared from the following components in parts by weight: 750 to 800 parts of ordinary Portland cement, 200 to 250 parts of fly ash, 2200 to 2400 parts of hole slag coarse aggregate, 1500 to 1600 parts of hole slag fine aggregate, 0.3 to 0.4 part of internal curing agent, 20 to 80 parts of expanding agent, 30 to 50 parts of water reducing agent and 350 to 400 parts of water. The invention also discloses a preparation method of the low-shrinkage full-hole slag aggregate concrete. Based on the composite shrinkage compensation effect of the internal curing agent and the calcium oxide expanding agent, the prepared low-shrinkage full-hole slag aggregate concrete has the performance characteristics of high compression resistance, low shrinkage and high durability, the shrinkage cracking risk of the full-hole slag aggregate concrete is reduced, and the service life of the concrete is prolonged.
本发明公开了一种低收缩全洞渣骨料混凝土，普通硅酸盐水泥750～800份、粉煤灰200～250份、洞渣粗骨料2200～2400份、洞渣细骨料1500～1600份、内养护剂0.3～0.4份、膨胀剂20～80份、减水剂30～50份和水350～400份。本发明还公开了一种低收缩全洞渣骨料混凝土的制备方法。基于内养护剂和氧化钙类膨胀剂的复合补偿收缩作用，所制备的低收缩全洞渣骨料混凝土具有高抗压、低收缩、高耐久的性能特点，降低了全洞渣骨料混凝土收缩开裂风险，延长了混凝土服役寿命。
Low-shrinkage full-hole slag aggregate concrete and preparation method thereof
The invention discloses low-shrinkage whole hole slag aggregate concrete, which is prepared from the following components in parts by weight: 750 to 800 parts of ordinary Portland cement, 200 to 250 parts of fly ash, 2200 to 2400 parts of hole slag coarse aggregate, 1500 to 1600 parts of hole slag fine aggregate, 0.3 to 0.4 part of internal curing agent, 20 to 80 parts of expanding agent, 30 to 50 parts of water reducing agent and 350 to 400 parts of water. The invention also discloses a preparation method of the low-shrinkage full-hole slag aggregate concrete. Based on the composite shrinkage compensation effect of the internal curing agent and the calcium oxide expanding agent, the prepared low-shrinkage full-hole slag aggregate concrete has the performance characteristics of high compression resistance, low shrinkage and high durability, the shrinkage cracking risk of the full-hole slag aggregate concrete is reduced, and the service life of the concrete is prolonged.
本发明公开了一种低收缩全洞渣骨料混凝土，普通硅酸盐水泥750～800份、粉煤灰200～250份、洞渣粗骨料2200～2400份、洞渣细骨料1500～1600份、内养护剂0.3～0.4份、膨胀剂20～80份、减水剂30～50份和水350～400份。本发明还公开了一种低收缩全洞渣骨料混凝土的制备方法。基于内养护剂和氧化钙类膨胀剂的复合补偿收缩作用，所制备的低收缩全洞渣骨料混凝土具有高抗压、低收缩、高耐久的性能特点，降低了全洞渣骨料混凝土收缩开裂风险，延长了混凝土服役寿命。
Low-shrinkage full-hole slag aggregate concrete and preparation method thereof
一种低收缩全洞渣骨料混凝土及其制备方法
WANG FENGJUAN (author) / MENG FANXU (author) / JIANG JINYANG (author) / LIU ZHIYONG (author) / FENG TAOTAO (author) / SU WEI (author) / CHEN ZHAOYI (author)
2022-12-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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