A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-crack concrete for municipal engineering and construction method thereof
The invention discloses anti-crack concrete for municipal engineering and a construction method thereof, and relates to the technical field of concrete preparation. According to the method, through reasonable concrete proportioning, the ratio of cement to a high gel material is reduced, and proper water amount and water reducing agent mixing amount are matched, so that the early strength increasing speed is reduced to a certain extent, the strength surplus coefficient is properly reduced, and the creep of the concrete is improved on the basis of the early strength increasing speed and the strength surplus coefficient; the shrinkage deformation of the concrete is reduced, and the pressure resistance is improved, so that the capability of resisting medium and long-term shrinkage deformation stress of the concrete is enhanced, and the cracking risk of the concrete in the later period is reduced; in addition, by improving the construction method, the segregation and bleeding phenomena in the concrete construction process are reduced, the shrinkage deformation of the concrete is reduced, and the cracking of the concrete is further reduced.
本发明公开了一种市政工程用抗裂混凝土及其施工方法，涉及混凝土制备技术领域。该方法通过合理的混凝土配比，降低了水泥和高凝胶材料的占比，配合适当的水量和减水剂掺量，在一定程度上压制了早起强度的增长速度，适当降低了强度富余系数，并在此基础上提升了混凝土徐变，减小了混凝土自身收缩变形、提升了抗压性，从而增强了混凝土抵抗中长期收缩变形应力的能力，降低了混凝土后期的开裂风险；另外本发明还通过改进施工方法，使得混凝土施工过程中离析、泌水现象减少，降低混凝土的收缩变形，进一步减少混凝土的开裂。
Anti-crack concrete for municipal engineering and construction method thereof
The invention discloses anti-crack concrete for municipal engineering and a construction method thereof, and relates to the technical field of concrete preparation. According to the method, through reasonable concrete proportioning, the ratio of cement to a high gel material is reduced, and proper water amount and water reducing agent mixing amount are matched, so that the early strength increasing speed is reduced to a certain extent, the strength surplus coefficient is properly reduced, and the creep of the concrete is improved on the basis of the early strength increasing speed and the strength surplus coefficient; the shrinkage deformation of the concrete is reduced, and the pressure resistance is improved, so that the capability of resisting medium and long-term shrinkage deformation stress of the concrete is enhanced, and the cracking risk of the concrete in the later period is reduced; in addition, by improving the construction method, the segregation and bleeding phenomena in the concrete construction process are reduced, the shrinkage deformation of the concrete is reduced, and the cracking of the concrete is further reduced.
本发明公开了一种市政工程用抗裂混凝土及其施工方法，涉及混凝土制备技术领域。该方法通过合理的混凝土配比，降低了水泥和高凝胶材料的占比，配合适当的水量和减水剂掺量，在一定程度上压制了早起强度的增长速度，适当降低了强度富余系数，并在此基础上提升了混凝土徐变，减小了混凝土自身收缩变形、提升了抗压性，从而增强了混凝土抵抗中长期收缩变形应力的能力，降低了混凝土后期的开裂风险；另外本发明还通过改进施工方法，使得混凝土施工过程中离析、泌水现象减少，降低混凝土的收缩变形，进一步减少混凝土的开裂。
Anti-crack concrete for municipal engineering and construction method thereof
一种市政工程用抗裂混凝土及其施工方法
CHEN JINLONG (author) / LIN YUNHENG (author) / WU HUANGPING (author) / CHEN HAILIN (author) / ZOU SHANZHONG (author)
2023-07-18
Patent
Electronic Resource
Chinese
Municipal anti-crack road base structure and construction method thereof
| European Patent Office | 2024
Concrete anti-crack wall and construction method thereof
| European Patent Office | 2020
Anti-crack construction method for half-range construction municipal road
| European Patent Office | 2023