A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-crack construction method for basement concrete outer wall
The invention discloses an anti-crack construction method for a concrete outer wall of a basement, which belongs to the field of concrete construction and comprises the following steps: S1, preparing a concrete mixture with low viscosity, no obvious stone hanging phenomenon, slight stone exposure and no obvious bleeding or bleeding performance by controlling the ratio of raw materials; s2, concrete pouring; s3, according to the environment air temperature, the form removal time is determined, and form removal is conducted after the form removal time is up; and S4, within 12 h after form removal, a concrete water-saving moisturizing curing film is adopted to conduct film-covering curing on the surface of the concrete, and the surface layer of the concrete is made to be in the environment with the humidity larger than or equal to 90% till the preset strength is achieved. According to the method, through concrete performance control, early and timely form removal time and timely and continuous high-humidity moisturizing and curing measures, favorable factors are increased as much as possible, adverse factors are reduced as much as possible, the crack resistance of concrete is improved, shrinkage effect accumulation is reduced, effective control over cracks is achieved, and replicability and generalizability are achieved.
本发明公开了一种地下室混凝土外墙防裂缝施工方法，属于混凝土施工领域，包括以下步骤：S1通过控制原料配比制备具有低粘度、无明显石子不挂浆现象、微露石以及无明显泌水或泌浆性能的混凝土拌合物；S2混凝土浇筑；S3根据环境气温确定拆模时间，并在达到拆模时间后进行拆模；S4在拆模后的12h内，采用混凝土节水保湿养护膜对混凝土表面进行覆膜养护，使混凝土的表层处于湿度大于或等于90％的环境中，直至达到预定强度。本发明方法通过混凝土性能控制、较早适时的拆模时间和及时持续的高湿度保湿养护措施，尽可能增加有利因素、减少不利因素，以提升混凝土自身的抗裂能力、降低收缩作用的累积为辅，实现裂缝的有效控制，具有可复制性和可推广性。
Anti-crack construction method for basement concrete outer wall
The invention discloses an anti-crack construction method for a concrete outer wall of a basement, which belongs to the field of concrete construction and comprises the following steps: S1, preparing a concrete mixture with low viscosity, no obvious stone hanging phenomenon, slight stone exposure and no obvious bleeding or bleeding performance by controlling the ratio of raw materials; s2, concrete pouring; s3, according to the environment air temperature, the form removal time is determined, and form removal is conducted after the form removal time is up; and S4, within 12 h after form removal, a concrete water-saving moisturizing curing film is adopted to conduct film-covering curing on the surface of the concrete, and the surface layer of the concrete is made to be in the environment with the humidity larger than or equal to 90% till the preset strength is achieved. According to the method, through concrete performance control, early and timely form removal time and timely and continuous high-humidity moisturizing and curing measures, favorable factors are increased as much as possible, adverse factors are reduced as much as possible, the crack resistance of concrete is improved, shrinkage effect accumulation is reduced, effective control over cracks is achieved, and replicability and generalizability are achieved.
本发明公开了一种地下室混凝土外墙防裂缝施工方法，属于混凝土施工领域，包括以下步骤：S1通过控制原料配比制备具有低粘度、无明显石子不挂浆现象、微露石以及无明显泌水或泌浆性能的混凝土拌合物；S2混凝土浇筑；S3根据环境气温确定拆模时间，并在达到拆模时间后进行拆模；S4在拆模后的12h内，采用混凝土节水保湿养护膜对混凝土表面进行覆膜养护，使混凝土的表层处于湿度大于或等于90％的环境中，直至达到预定强度。本发明方法通过混凝土性能控制、较早适时的拆模时间和及时持续的高湿度保湿养护措施，尽可能增加有利因素、减少不利因素，以提升混凝土自身的抗裂能力、降低收缩作用的累积为辅，实现裂缝的有效控制，具有可复制性和可推广性。
Anti-crack construction method for basement concrete outer wall
一种地下室混凝土外墙防裂缝施工方法
REN WENBO (author) / ZHANG DEBIAO (author) / LIU XIAOGANG (author) / XU SHUANGQUAN (author) / WU CHENGHUA (author) / WU CHAOJIE (author) / HUANG YANGMING (author) / MI ZHIGANG (author) / WANG GANG (author)
2022-05-17
Patent
Electronic Resource
Chinese
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