A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Concrete for slip-form construction of road halving zone as well as preparation method and application of concrete
The invention relates to the technical field of concrete, in particular to road mid-zoning slip-form construction concrete and a preparation method and application thereof.The slump and fluidity of the prepared concrete are balanced by selecting cement, coal ash, machine-made sand, fine gravel, coarse gravel, a water reducing agent, water and other raw materials and combining proper proportion design; the difficulty that the concrete slides out of the slip form is reduced, the slump of the concrete is maintained at 40-45mm after the concrete is taken out of a slip form machine, the slump of the concrete is maintained at 15-20mm after the concrete is taken out of the slip form machine, and the slip form forming effect is improved; and meanwhile, the 3d compressive strength of the concrete is improved after the concrete is discharged from the machine and formed, and the forming and anti-collision effects of the middle division belt are improved.
本发明涉及混凝土技术领域，尤其是一种道路中分带滑模施工混凝土及其制备方法和应用，经水泥、粉煤灰、机制砂、细碎石、粗碎石、减水剂、水等原料选取，结合恰当配比设计，使得配制而成的混凝土坍落度和流动性得到均衡，降低了混凝土从滑模中滑出的难度，且保障了混凝土出滑模机后的坍落度维持在40‑45mm，出机后的坍落度维持在15‑20mm，提高了滑模成型效果；同时，使得混凝土出机成型后3d抗压强度得到提升，改善了中分带成型和防撞效果。
Concrete for slip-form construction of road halving zone as well as preparation method and application of concrete
The invention relates to the technical field of concrete, in particular to road mid-zoning slip-form construction concrete and a preparation method and application thereof.The slump and fluidity of the prepared concrete are balanced by selecting cement, coal ash, machine-made sand, fine gravel, coarse gravel, a water reducing agent, water and other raw materials and combining proper proportion design; the difficulty that the concrete slides out of the slip form is reduced, the slump of the concrete is maintained at 40-45mm after the concrete is taken out of a slip form machine, the slump of the concrete is maintained at 15-20mm after the concrete is taken out of the slip form machine, and the slip form forming effect is improved; and meanwhile, the 3d compressive strength of the concrete is improved after the concrete is discharged from the machine and formed, and the forming and anti-collision effects of the middle division belt are improved.
本发明涉及混凝土技术领域，尤其是一种道路中分带滑模施工混凝土及其制备方法和应用，经水泥、粉煤灰、机制砂、细碎石、粗碎石、减水剂、水等原料选取，结合恰当配比设计，使得配制而成的混凝土坍落度和流动性得到均衡，降低了混凝土从滑模中滑出的难度，且保障了混凝土出滑模机后的坍落度维持在40‑45mm，出机后的坍落度维持在15‑20mm，提高了滑模成型效果；同时，使得混凝土出机成型后3d抗压强度得到提升，改善了中分带成型和防撞效果。
Concrete for slip-form construction of road halving zone as well as preparation method and application of concrete
一种道路中分带滑模施工混凝土及其制备方法和应用
YU CHONGJUN (author) / LIU WANJUN (author) / LIANG DONG (author) / LUO CHUANFENG (author) / YANG LI (author) / XU MEI (author) / LUO CHENGJIE (author) / HE YONGJUN (author) / ZHANG YANG (author)
2024-01-26
Patent
Electronic Resource
Chinese
Crash barrier slip form construction concrete as well as preparation method and application thereof
| European Patent Office | 2023
Road shoulder sand-free macroporous concrete slip form construction process
| European Patent Office | 2022