Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-compacting concrete and construction method thereof
The invention discloses self-compacting concrete and a construction method thereof, and the self-compacting concrete is prepared from the following raw materials in parts by weight: 200 to 250 parts of cement, 100 to 130 parts of fine aggregate, 700 to 800 parts of coarse aggregate, 150 to 200 parts of mineral admixture, 12 to 15 parts of water reducing agent, 50 to 65 parts of anti-cracking admixture and 150 to 180 parts of water. The construction method comprises the following steps: (1) uniformly mixing the coarse aggregate, the fine aggregate and the anti-crack admixture according to the formula ratio to obtain the aggregate; (2) adding the cement and the mineral admixture into the aggregate according to the formula ratio, uniformly mixing the components, and mixing with 1/3-2/3 of water according to the formula ratio to obtain a mixture; and (3) adding the water reducing agent and the residual formula amount of water into the mixture, and continuously mixing the mixture to obtain the water-based composite material. The self-compacting concrete is low in early-stage shrinkage rate and good in crack resistance, and the durability of the self-compacting concrete is improved.
本发明公开了一种自密实混凝土及其施工方法，所述自密实混凝土，包括以下重量份的原料：水泥200‑250份、细骨料100‑130份、粗骨料700‑800份、矿物掺合料150‑200份、减水剂12‑15份、抗裂掺合料50‑65份和水150‑180份。所述施工方法，包括：(1)将配方量的粗骨料、细骨料和抗裂掺合料，拌合均匀、得到骨料；(2)向骨料中加入配方量的水泥、矿物掺合料，拌合均匀后，与1/3‑2/3配方量的水拌合，得到混合料；(3)向混合料中加入减水剂和剩余配方量的水，继续拌合，即得。本发明的自密实混凝土的早期收缩率低，抗裂性能好，提高了自密实混凝土的耐久性。
Self-compacting concrete and construction method thereof
The invention discloses self-compacting concrete and a construction method thereof, and the self-compacting concrete is prepared from the following raw materials in parts by weight: 200 to 250 parts of cement, 100 to 130 parts of fine aggregate, 700 to 800 parts of coarse aggregate, 150 to 200 parts of mineral admixture, 12 to 15 parts of water reducing agent, 50 to 65 parts of anti-cracking admixture and 150 to 180 parts of water. The construction method comprises the following steps: (1) uniformly mixing the coarse aggregate, the fine aggregate and the anti-crack admixture according to the formula ratio to obtain the aggregate; (2) adding the cement and the mineral admixture into the aggregate according to the formula ratio, uniformly mixing the components, and mixing with 1/3-2/3 of water according to the formula ratio to obtain a mixture; and (3) adding the water reducing agent and the residual formula amount of water into the mixture, and continuously mixing the mixture to obtain the water-based composite material. The self-compacting concrete is low in early-stage shrinkage rate and good in crack resistance, and the durability of the self-compacting concrete is improved.
本发明公开了一种自密实混凝土及其施工方法，所述自密实混凝土，包括以下重量份的原料：水泥200‑250份、细骨料100‑130份、粗骨料700‑800份、矿物掺合料150‑200份、减水剂12‑15份、抗裂掺合料50‑65份和水150‑180份。所述施工方法，包括：(1)将配方量的粗骨料、细骨料和抗裂掺合料，拌合均匀、得到骨料；(2)向骨料中加入配方量的水泥、矿物掺合料，拌合均匀后，与1/3‑2/3配方量的水拌合，得到混合料；(3)向混合料中加入减水剂和剩余配方量的水，继续拌合，即得。本发明的自密实混凝土的早期收缩率低，抗裂性能好，提高了自密实混凝土的耐久性。
Self-compacting concrete and construction method thereof
一种自密实混凝土及其施工方法
HUANG ZHUYU (Autor:in) / FU RUNXING (Autor:in) / XIE BIN (Autor:in) / YU HUAYING (Autor:in) / HUANG DINGFANG (Autor:in)
03.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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