Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rigid waterproof mortar and preparation method thereof
The invention discloses rigid waterproof mortar and a preparation method thereof. The rigid waterproof mortar comprises low-shrinkage cement, selected graded fine aggregate, an admixture, fibers, a high-efficiency water reducing agent, a water-retaining agent, a defoaming agent and an expanding agent. The admixture is prepared from high-content amorphous silicon dioxide in the rice hull ash, so that the effect of solid waste utilization is achieved, generation of ettringite and needle-like C-S-H gel can be promoted, and the compactness of the cement mortar is improved. Meanwhile, the low-shrinkage cement and the polymer fibers are mixed, so that the overall cement mortar is improved to the greatest extent. The cement anti-permeability mortar has excellent anti-permeability effects in early and later stages; the early mechanical strength is developed quickly, the later strength is stably and sustainably developed, a delaminating failure mode or a stripping mode different from that of the traditional waterproof mortar and a brittle failure mode different from that of the traditional waterproof mortar can be generated, and a test piece is free of a stripping phenomenon after being damaged, still has a complete form and can be widely applied to the field of building waterproof engineering.
本发明公开了一种刚性防水砂浆及其制备方法，包括低收缩水泥、精选级配细骨料、掺合料、纤维、高效减水剂、保水剂、消泡剂、膨胀剂。用稻壳灰中高含量无定形二氧化硅制备掺合料，不仅仅起到固废利用的效果，还能促进钙矾石和针状C‑S‑H凝胶生成，提高水泥砂浆密实度。同时低收缩水泥与高分子纤维混合使最大程度提高水泥砂浆整体。该水泥抗渗砂浆早、后期均具有优异抗渗效果；早期力学强度发展快，后期强度稳定持续发展，可产生不同于传统防水砂浆的脱层失效模式或剥落模式，不同于传统防水砂浆的脆性破坏模式，试件破坏后无剥落现象，仍具备完整形态，可广泛应用于建筑防水工程领域中。
Rigid waterproof mortar and preparation method thereof
The invention discloses rigid waterproof mortar and a preparation method thereof. The rigid waterproof mortar comprises low-shrinkage cement, selected graded fine aggregate, an admixture, fibers, a high-efficiency water reducing agent, a water-retaining agent, a defoaming agent and an expanding agent. The admixture is prepared from high-content amorphous silicon dioxide in the rice hull ash, so that the effect of solid waste utilization is achieved, generation of ettringite and needle-like C-S-H gel can be promoted, and the compactness of the cement mortar is improved. Meanwhile, the low-shrinkage cement and the polymer fibers are mixed, so that the overall cement mortar is improved to the greatest extent. The cement anti-permeability mortar has excellent anti-permeability effects in early and later stages; the early mechanical strength is developed quickly, the later strength is stably and sustainably developed, a delaminating failure mode or a stripping mode different from that of the traditional waterproof mortar and a brittle failure mode different from that of the traditional waterproof mortar can be generated, and a test piece is free of a stripping phenomenon after being damaged, still has a complete form and can be widely applied to the field of building waterproof engineering.
本发明公开了一种刚性防水砂浆及其制备方法，包括低收缩水泥、精选级配细骨料、掺合料、纤维、高效减水剂、保水剂、消泡剂、膨胀剂。用稻壳灰中高含量无定形二氧化硅制备掺合料，不仅仅起到固废利用的效果，还能促进钙矾石和针状C‑S‑H凝胶生成，提高水泥砂浆密实度。同时低收缩水泥与高分子纤维混合使最大程度提高水泥砂浆整体。该水泥抗渗砂浆早、后期均具有优异抗渗效果；早期力学强度发展快，后期强度稳定持续发展，可产生不同于传统防水砂浆的脱层失效模式或剥落模式，不同于传统防水砂浆的脆性破坏模式，试件破坏后无剥落现象，仍具备完整形态，可广泛应用于建筑防水工程领域中。
Rigid waterproof mortar and preparation method thereof
一种刚性防水砂浆及其制备方法
XU XUN (Autor:in) / YANG XIAOCHEN (Autor:in) / JI MENGQI (Autor:in)
05.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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