Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mass concrete construction method
The invention relates to the technical field of concrete construction, and particularly discloses a mass concrete construction method which comprises the following steps: S1, preparing mass concrete with low hydration heat, low shrinkage and high durability; s2, concrete is transported, poured and vibrated, during concrete pouring, during construction in winter, before pumping, pipe moistening is conducted through hot water and mortar with the temperature not lower than 15 DEG C, and during construction in summer, a concrete pumping pipeline is wrapped with a reflective heat preservation material, so that the temperature difference between the interior and the exterior of the pump pipe ranges from 1 DEG C to 1.5 DEG C; the mold entering temperature of mass concrete in a summer high-temperature environment is controlled to be lower than 30 DEG C, and the mold entering temperature in a winter cold environment is controlled to be higher than 10 DEG C; s3, concrete curing, wherein the temperature difference between the center and the surface of the concrete during summer curing is controlled to be not larger than 25 DEG C in the concrete curing process. The method has the characteristic of reducing the shrinkage cracking risk of the concrete.
本申请涉及混凝土施工技术领域，具体公开了一种大体积混凝土施工方法，包括以下步骤：S1、配制低水化热低收缩高耐久性大体积混凝土；S2、混凝土运输、浇筑、振捣，混凝土浇筑时，冬季施工时在泵送前先通过热水和温度不低于15℃的砂浆进行润管，夏季施工时对混凝土泵送管道包裹反光保温材料，使得泵管内外温差在1‑1.5℃之间；控制大体积混凝土夏季高温环境入模温度小于30℃，冬季寒冷环境下入模温度高于10℃；S3、混凝土养护，混凝土养护过程中控制夏季养护时混凝土中心和表面的温差不大于25℃。本申请具有降低混凝土收缩开裂风险的特点。
Mass concrete construction method
The invention relates to the technical field of concrete construction, and particularly discloses a mass concrete construction method which comprises the following steps: S1, preparing mass concrete with low hydration heat, low shrinkage and high durability; s2, concrete is transported, poured and vibrated, during concrete pouring, during construction in winter, before pumping, pipe moistening is conducted through hot water and mortar with the temperature not lower than 15 DEG C, and during construction in summer, a concrete pumping pipeline is wrapped with a reflective heat preservation material, so that the temperature difference between the interior and the exterior of the pump pipe ranges from 1 DEG C to 1.5 DEG C; the mold entering temperature of mass concrete in a summer high-temperature environment is controlled to be lower than 30 DEG C, and the mold entering temperature in a winter cold environment is controlled to be higher than 10 DEG C; s3, concrete curing, wherein the temperature difference between the center and the surface of the concrete during summer curing is controlled to be not larger than 25 DEG C in the concrete curing process. The method has the characteristic of reducing the shrinkage cracking risk of the concrete.
本申请涉及混凝土施工技术领域，具体公开了一种大体积混凝土施工方法，包括以下步骤：S1、配制低水化热低收缩高耐久性大体积混凝土；S2、混凝土运输、浇筑、振捣，混凝土浇筑时，冬季施工时在泵送前先通过热水和温度不低于15℃的砂浆进行润管，夏季施工时对混凝土泵送管道包裹反光保温材料，使得泵管内外温差在1‑1.5℃之间；控制大体积混凝土夏季高温环境入模温度小于30℃，冬季寒冷环境下入模温度高于10℃；S3、混凝土养护，混凝土养护过程中控制夏季养护时混凝土中心和表面的温差不大于25℃。本申请具有降低混凝土收缩开裂风险的特点。
Mass concrete construction method
一种大体积混凝土施工方法
DING LUJING (Autor:in) / LUO ZUOQIU (Autor:in) / ZHANG KAIFENG (Autor:in) / CHEN QUANBIN (Autor:in) / WANG JUN (Autor:in) / LIU XINGYU (Autor:in) / GAO JIAN (Autor:in) / LIANG GUOLI (Autor:in) / LI WEI (Autor:in)
17.11.2023
Patent
Elektronische Ressource
Chinesisch