A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Early-strength and quick-hardening cement concrete for bridge deck pavement and quick repair method of early-strength and quick-hardening cement concrete
The invention discloses early-strength quick-hardening cement concrete for bridge deck pavement and a quick repair method thereof. The early-strength quick-hardening cement concrete for bridge deck pavement is prepared from ordinary Portland cement, quick-hardening Portland cement, waterborne polyurethane, a polycarboxylic acid type high-efficiency water reducing agent, coarse aggregate of 5-15 mm, river sand and water according to the mass ratio of 180: (120-270): 5: (38-57): 1090: 656: 190. According to the rapid repairing method, early-strength and rapid-hardening cement is mixed in advance to repair and fill the cement concrete bridge deck aiming at the diseases such as cracks, pit slots, cracks, plate breakage, local sinking or slab staggering, cracking and loosening, pit holes, slag falling or exposed bone and pitted surfaces of the cement concrete bridge deck, so that the purpose of rapidly repairing the bridge deck diseases is achieved. The early-strength and quick-hardening cement concrete has the characteristics of environmental protection, high early strength, short initial setting time, short construction period and simple process, and can generate remarkable economic, social and ecological benefits.
本发明公开了一种桥面铺装用早强快硬水泥混凝土及其快速修复方法。所述桥面铺装用早强快硬水泥混凝土由普通硅酸盐水泥、快硬硅酸盐水泥、水性聚氨酯、聚羧酸系高效减水剂、5‑15mm的粗集料、河砂和水按质量比180：120‑270：5：38‑57：1090：656：190组成。本发明的快速修复方法是指针对水泥混凝土桥面裂缝、坑槽、开裂、断板、局部凹陷或错台、开裂松动、坑洞、掉渣或露骨麻面等病害将早强快硬水泥预先拌制修复填充水泥混凝土桥面，以达到快速修复桥面病害的目的。该早强快硬水泥混凝土具有绿色环保、早强强度高、初凝时间短、施工周期短、工艺简单的特点，可产生显著的经济社会生态效益。
Early-strength and quick-hardening cement concrete for bridge deck pavement and quick repair method of early-strength and quick-hardening cement concrete
The invention discloses early-strength quick-hardening cement concrete for bridge deck pavement and a quick repair method thereof. The early-strength quick-hardening cement concrete for bridge deck pavement is prepared from ordinary Portland cement, quick-hardening Portland cement, waterborne polyurethane, a polycarboxylic acid type high-efficiency water reducing agent, coarse aggregate of 5-15 mm, river sand and water according to the mass ratio of 180: (120-270): 5: (38-57): 1090: 656: 190. According to the rapid repairing method, early-strength and rapid-hardening cement is mixed in advance to repair and fill the cement concrete bridge deck aiming at the diseases such as cracks, pit slots, cracks, plate breakage, local sinking or slab staggering, cracking and loosening, pit holes, slag falling or exposed bone and pitted surfaces of the cement concrete bridge deck, so that the purpose of rapidly repairing the bridge deck diseases is achieved. The early-strength and quick-hardening cement concrete has the characteristics of environmental protection, high early strength, short initial setting time, short construction period and simple process, and can generate remarkable economic, social and ecological benefits.
本发明公开了一种桥面铺装用早强快硬水泥混凝土及其快速修复方法。所述桥面铺装用早强快硬水泥混凝土由普通硅酸盐水泥、快硬硅酸盐水泥、水性聚氨酯、聚羧酸系高效减水剂、5‑15mm的粗集料、河砂和水按质量比180：120‑270：5：38‑57：1090：656：190组成。本发明的快速修复方法是指针对水泥混凝土桥面裂缝、坑槽、开裂、断板、局部凹陷或错台、开裂松动、坑洞、掉渣或露骨麻面等病害将早强快硬水泥预先拌制修复填充水泥混凝土桥面，以达到快速修复桥面病害的目的。该早强快硬水泥混凝土具有绿色环保、早强强度高、初凝时间短、施工周期短、工艺简单的特点，可产生显著的经济社会生态效益。
Early-strength and quick-hardening cement concrete for bridge deck pavement and quick repair method of early-strength and quick-hardening cement concrete
一种桥面铺装用早强快硬水泥混凝土及其快速修复方法
ZHANG YANCONG (author) / ZHOU XINXING (author) / GUO RUI (author) / CHEN RUXIAN (author) / CHENG BINGBING (author) / LIU TAO (author) / FENG JIANTONG (author) / JIA PENGYUN (author) / WEI YIQIANG (author) / ZHAO YUNCHUAN (author)
2024-04-02
Patent
Electronic Resource
Chinese
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