Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-crack shrinkage-compensating concrete and application method thereof
The invention relates to the technical field of concrete, and particularly discloses anti-crack shrinkage-compensating concrete and an application method thereof. The anti-crack shrinkage-compensating concrete is obtained by curing a concrete mixture, and the concrete mixture is prepared from the following components in parts by weight: 324 to 328 parts of cement, 108 to 112 parts of mineral admixture, 214 to 218 parts of water, 1166 to 1186 parts of coarse aggregate, 734 to 754 parts of fine aggregate, 3.2 to 3.4 parts of water reducing agent, 1.1 to 1.2 parts of shrinkage reducing agent, 1.1 to 1.2 parts of magnesium oxide expanding agent and 20 to 80 parts of anti-crack filler, the anti-crack filler comprises anti-crack fibers, and the anti-crack fibers are polypropylene fibers grafted with carboxyl groups or sulfonic groups on the surfaces. According to the technical scheme, the anti-cracking performance of the concrete can be improved under the condition that the mixing amount of the expanding agent and the shrinkage reducing agent is not obviously changed, and the concrete is suitable for being applied to engineering structures such as post-cast strips.
本申请涉及混凝土技术领域，具体公开了一种抗裂型补偿收缩混凝土及其应用方法。所述抗裂型补偿收缩混凝土由混凝土拌和物经过养护后得到，所述混凝土拌和物包括如下重量份的组分：水泥324‑328份，矿物掺合料108‑112份，水214‑218份，粗骨料1166‑1186份，细骨料734‑754份，减水剂3.2‑3.4份，减缩剂1.1‑1.2份，氧化镁膨胀剂1.1‑1.2份，抗裂填料20‑80份，所述抗裂填料包括抗裂纤维，所述抗裂纤维为表面接枝有羧基或磺酸基的聚丙烯纤维。本申请的技术方案能够在膨胀剂和减缩剂掺量未发生明显改变的条件下改善混凝土的抗裂性能，适合在后浇带等工程结构中进行应用。
Anti-crack shrinkage-compensating concrete and application method thereof
The invention relates to the technical field of concrete, and particularly discloses anti-crack shrinkage-compensating concrete and an application method thereof. The anti-crack shrinkage-compensating concrete is obtained by curing a concrete mixture, and the concrete mixture is prepared from the following components in parts by weight: 324 to 328 parts of cement, 108 to 112 parts of mineral admixture, 214 to 218 parts of water, 1166 to 1186 parts of coarse aggregate, 734 to 754 parts of fine aggregate, 3.2 to 3.4 parts of water reducing agent, 1.1 to 1.2 parts of shrinkage reducing agent, 1.1 to 1.2 parts of magnesium oxide expanding agent and 20 to 80 parts of anti-crack filler, the anti-crack filler comprises anti-crack fibers, and the anti-crack fibers are polypropylene fibers grafted with carboxyl groups or sulfonic groups on the surfaces. According to the technical scheme, the anti-cracking performance of the concrete can be improved under the condition that the mixing amount of the expanding agent and the shrinkage reducing agent is not obviously changed, and the concrete is suitable for being applied to engineering structures such as post-cast strips.
本申请涉及混凝土技术领域，具体公开了一种抗裂型补偿收缩混凝土及其应用方法。所述抗裂型补偿收缩混凝土由混凝土拌和物经过养护后得到，所述混凝土拌和物包括如下重量份的组分：水泥324‑328份，矿物掺合料108‑112份，水214‑218份，粗骨料1166‑1186份，细骨料734‑754份，减水剂3.2‑3.4份，减缩剂1.1‑1.2份，氧化镁膨胀剂1.1‑1.2份，抗裂填料20‑80份，所述抗裂填料包括抗裂纤维，所述抗裂纤维为表面接枝有羧基或磺酸基的聚丙烯纤维。本申请的技术方案能够在膨胀剂和减缩剂掺量未发生明显改变的条件下改善混凝土的抗裂性能，适合在后浇带等工程结构中进行应用。
Anti-crack shrinkage-compensating concrete and application method thereof
一种抗裂型补偿收缩混凝土及其应用方法
LIU MENG (Autor:in) / LIANG XINCHENG (Autor:in) / ZHANG ZHONGMING (Autor:in) / FU QICAI (Autor:in) / SHU XINHAI (Autor:in)
09.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME