A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Concrete material for early-strength expansion joint anchoring area and performance test method
The invention discloses a concrete material for an early strength type expansion joint anchoring area and a performance test method, and relates to the field of concrete, the concrete material comprises 40-60 parts of Portland cement, 35-60 parts of aggregate, 2-5 parts of iron oxide, 2-4 parts of a water reducing agent, and 35-45 parts of water. According to the concrete material for the early strength type expansion joint anchoring area, the Portland cement is matched with the aggregate and the ferric oxide to be blended and optimized through the acid-corrosion-resistant additive and the water reducing agent, so that the concrete material has good early strength performance and anti-seepage performance, and has excellent applicability during construction and repair operation of bridge expansion joints. According to the performance test method disclosed by the invention, field information can be collected under the condition of not closing traffic through a mode of testing by using a mold in an earlier stage, and the 1h compressive strength and 3h compressive strength of the concrete after construction can be predicted by correcting the model, so that whether the compressive strength can meet the design requirement or not can be verified in advance; therefore, the proportion of the concrete is adjusted in advance, and the influence of construction on urban traffic is reduced.
本发明公开了一种早强型伸缩缝锚固区用混凝土材料及性能试验方法，涉及混凝土领域，其包括硅酸盐水泥40～60份，骨料35～60份，氧化铁2～5份，减水剂2～4份、水35～45份。本发明早强型伸缩缝锚固区用混凝土材料采用硅酸盐水泥配合骨料、氧化铁通过耐酸腐外加剂、减水剂调配优化，使得混凝土材料具有良好的早强性能、防渗性能，在桥梁伸缩缝的施工、修复作业时有着极佳的适用性。本发明的性能试验方法能够通过前期用模具试验的方式，在不封闭交通的情况下收集现场信息，并通过修正模型，从而预测得到施工后混凝土的1h抗压强度以及3h抗压强度，能够提前验证抗压强度能否达到设计要求，从而提前对混凝土的配比进行调整，降低施工对城市交通的影响。
Concrete material for early-strength expansion joint anchoring area and performance test method
The invention discloses a concrete material for an early strength type expansion joint anchoring area and a performance test method, and relates to the field of concrete, the concrete material comprises 40-60 parts of Portland cement, 35-60 parts of aggregate, 2-5 parts of iron oxide, 2-4 parts of a water reducing agent, and 35-45 parts of water. According to the concrete material for the early strength type expansion joint anchoring area, the Portland cement is matched with the aggregate and the ferric oxide to be blended and optimized through the acid-corrosion-resistant additive and the water reducing agent, so that the concrete material has good early strength performance and anti-seepage performance, and has excellent applicability during construction and repair operation of bridge expansion joints. According to the performance test method disclosed by the invention, field information can be collected under the condition of not closing traffic through a mode of testing by using a mold in an earlier stage, and the 1h compressive strength and 3h compressive strength of the concrete after construction can be predicted by correcting the model, so that whether the compressive strength can meet the design requirement or not can be verified in advance; therefore, the proportion of the concrete is adjusted in advance, and the influence of construction on urban traffic is reduced.
本发明公开了一种早强型伸缩缝锚固区用混凝土材料及性能试验方法，涉及混凝土领域，其包括硅酸盐水泥40～60份，骨料35～60份，氧化铁2～5份，减水剂2～4份、水35～45份。本发明早强型伸缩缝锚固区用混凝土材料采用硅酸盐水泥配合骨料、氧化铁通过耐酸腐外加剂、减水剂调配优化，使得混凝土材料具有良好的早强性能、防渗性能，在桥梁伸缩缝的施工、修复作业时有着极佳的适用性。本发明的性能试验方法能够通过前期用模具试验的方式，在不封闭交通的情况下收集现场信息，并通过修正模型，从而预测得到施工后混凝土的1h抗压强度以及3h抗压强度，能够提前验证抗压强度能否达到设计要求，从而提前对混凝土的配比进行调整，降低施工对城市交通的影响。
Concrete material for early-strength expansion joint anchoring area and performance test method
一种早强型伸缩缝锚固区用混凝土材料及性能试验方法
LI YI (author) / FENG LIANGPING (author) / DAI XIHUA (author) / SEO YEONG-HYUN (author) / XU YANGMING (author) / JIANG LINSONG (author) / GAO YUAN (author)
2024-05-31
Patent
Electronic Resource
Chinese
| European Patent Office | 2023
Bridge expansion joint anchoring area concrete and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2020
| European Patent Office | 2024