Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Microbial concrete with high impermeability and freeze thawing resistance and preparation method thereof
The invention discloses microbial concrete with high permeability resistance and freeze thawing resistance and a preparation method thereof. The concrete is prepared from the following raw materials in parts by weight: 300 to 500 parts of Portland cement, 50 to 65 parts of silica fume or fly ash, 450 to 650 parts of fine aggregate, 900 to 1250 parts of coarse aggregate, 10 to 15 parts of a water reducing agent, 250 to 400 parts of water, 5 to 10 parts of modified expanded perlite and 10 to 50 parts of expanded pearl pumice. The microbial concrete disclosed by the invention has good impermeability and freeze thawing resistance, solves the problems that the impermeability of the concrete is reduced and the concrete is easy to crack and even frost heave under long-term freeze-thaw cycle, can be used for building construction, and can also be used for frost heave repair of the surfaces of buildings or other infrastructures.
本发明公开了一种高抗渗抗冻融的微生物混凝土及其制备方法，所述混凝土包括如下重量份数的原料：硅酸盐水泥300‑500份、硅灰或粉煤灰50‑65份、细骨料450‑650份、粗骨料900‑1250份、减水剂10‑15份、水250‑400份、改性膨胀珍珠岩5‑10份、膨胀珍珠轻石10‑50份。本发明微生物混凝土具有良好的抗渗性以及抗冻融的能力，解决了长期冻融循环下，混凝土抗渗能力下降且易产生开裂甚至冻胀的问题，其不仅能用于建筑建造，还能用于建筑或者其它基础设施表面的冻胀修复。
Microbial concrete with high impermeability and freeze thawing resistance and preparation method thereof
The invention discloses microbial concrete with high permeability resistance and freeze thawing resistance and a preparation method thereof. The concrete is prepared from the following raw materials in parts by weight: 300 to 500 parts of Portland cement, 50 to 65 parts of silica fume or fly ash, 450 to 650 parts of fine aggregate, 900 to 1250 parts of coarse aggregate, 10 to 15 parts of a water reducing agent, 250 to 400 parts of water, 5 to 10 parts of modified expanded perlite and 10 to 50 parts of expanded pearl pumice. The microbial concrete disclosed by the invention has good impermeability and freeze thawing resistance, solves the problems that the impermeability of the concrete is reduced and the concrete is easy to crack and even frost heave under long-term freeze-thaw cycle, can be used for building construction, and can also be used for frost heave repair of the surfaces of buildings or other infrastructures.
本发明公开了一种高抗渗抗冻融的微生物混凝土及其制备方法，所述混凝土包括如下重量份数的原料：硅酸盐水泥300‑500份、硅灰或粉煤灰50‑65份、细骨料450‑650份、粗骨料900‑1250份、减水剂10‑15份、水250‑400份、改性膨胀珍珠岩5‑10份、膨胀珍珠轻石10‑50份。本发明微生物混凝土具有良好的抗渗性以及抗冻融的能力，解决了长期冻融循环下，混凝土抗渗能力下降且易产生开裂甚至冻胀的问题，其不仅能用于建筑建造，还能用于建筑或者其它基础设施表面的冻胀修复。
Microbial concrete with high impermeability and freeze thawing resistance and preparation method thereof
一种高抗渗抗冻融的微生物混凝土及其制备方法
LI ZHU (Autor:in) / JIA GUANHUA (Autor:in)
14.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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