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A platform for research: civil engineering, architecture and urbanism
Anti-erosion anti-corrosion concrete shield segment
The invention discloses an anti-erosion anti-corrosion concrete shield segment. The concrete shield segment is prepared from the following components: 400 to 420 parts of ordinary Portland cement, 28 to 32 parts of fly ash, 45 to 47 parts of a multifunctional anti-erosion anti-corrosion agent, 540 to 580 parts of sand, 770 to 790 parts of gravel with a size of 5 to 25 mm, 140 to 150 parts of water, 5.5 to 5.9 parts of an additive, 110 to 120 parts of carbon fibers and 8 to 9.2 parts of a water reducing agent. According to the anti-erosion anti-corrosion concrete shield segment, a three-dimensional space network structure is formed in concrete through fibers, so the function of supporting aggregate is achieved, and sedimentation of coarse aggregate and fine aggregate is prevented to a certain degree; meanwhile, the bleeding phenomenon of a concrete surface is reduced, and large-volume shrinkage in a plastic period caused by rapid water loss of the concrete surface is effectively prevented, so cracks on the concrete surface in the plastic period are inhibited; and the multifunctional anti-erosion anti-corrosion agent remarkably improves the anti-erosion and anti-corrosion effects of the shield segment and avoids leakage.
本发明公开了一种抗侵蚀防腐混凝土盾构管片，包括以下组份：普通硅酸盐水泥400‑420份、粉煤灰28‑32份、多功能抗侵蚀防腐剂45‑47份、砂子540‑580份、5‑25mm碎石770‑790份、水140‑150份、外加剂5.5‑5.9份、碳纤维110‑120份、减水剂8‑9.2份。该抗侵蚀防腐混凝土盾构管片，通过纤维在混凝土内呈现三维空间网络结构，所以起到支撑集料的作用，在一定程度上阻止了粗、细集料的沉降；同时也降低了混凝土表面的析水现象，有效阻止由于混凝土表面迅速失水造成塑性期较大体积收缩，从而抑制塑性期混凝土表面出现裂缝，多功能抗侵蚀防腐剂显著提升盾构管片抗侵蚀防腐效果好，杜绝渗漏。
Anti-erosion anti-corrosion concrete shield segment
The invention discloses an anti-erosion anti-corrosion concrete shield segment. The concrete shield segment is prepared from the following components: 400 to 420 parts of ordinary Portland cement, 28 to 32 parts of fly ash, 45 to 47 parts of a multifunctional anti-erosion anti-corrosion agent, 540 to 580 parts of sand, 770 to 790 parts of gravel with a size of 5 to 25 mm, 140 to 150 parts of water, 5.5 to 5.9 parts of an additive, 110 to 120 parts of carbon fibers and 8 to 9.2 parts of a water reducing agent. According to the anti-erosion anti-corrosion concrete shield segment, a three-dimensional space network structure is formed in concrete through fibers, so the function of supporting aggregate is achieved, and sedimentation of coarse aggregate and fine aggregate is prevented to a certain degree; meanwhile, the bleeding phenomenon of a concrete surface is reduced, and large-volume shrinkage in a plastic period caused by rapid water loss of the concrete surface is effectively prevented, so cracks on the concrete surface in the plastic period are inhibited; and the multifunctional anti-erosion anti-corrosion agent remarkably improves the anti-erosion and anti-corrosion effects of the shield segment and avoids leakage.
本发明公开了一种抗侵蚀防腐混凝土盾构管片，包括以下组份：普通硅酸盐水泥400‑420份、粉煤灰28‑32份、多功能抗侵蚀防腐剂45‑47份、砂子540‑580份、5‑25mm碎石770‑790份、水140‑150份、外加剂5.5‑5.9份、碳纤维110‑120份、减水剂8‑9.2份。该抗侵蚀防腐混凝土盾构管片，通过纤维在混凝土内呈现三维空间网络结构，所以起到支撑集料的作用，在一定程度上阻止了粗、细集料的沉降；同时也降低了混凝土表面的析水现象，有效阻止由于混凝土表面迅速失水造成塑性期较大体积收缩，从而抑制塑性期混凝土表面出现裂缝，多功能抗侵蚀防腐剂显著提升盾构管片抗侵蚀防腐效果好，杜绝渗漏。
Anti-erosion anti-corrosion concrete shield segment
一种抗侵蚀防腐混凝土盾构管片
WANG HAIFENG (author) / ZHU QIAORONG (author) / WANG ZHANJI (author) / WU WENLONG (author) / QIN JIE (author) / XU XIAOYUN (author) / LIU ZENGHUI (author) / HOU TAO (author)
2021-05-25
Patent
Electronic Resource
Chinese
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