A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
New material for backfilling structure abutment back
The invention relates to the technical field of building foundation construction application, and discloses a new material for backfilling a structure abutment back, which is prepared from the following raw materials in parts by mass: 70 to 80 parts of cement, 250 to 320 parts of water and 1500 to 1700 parts of sand. The particle size of the sand is 0.075 mm, and the screen residue is not more than 7%; and the cement is ordinary Portland cement or Portland slag cement or Portland fly ash cement with the grade of 32.5 MPa. According to the invention, manufacturing is simpler, the material is more uniform, the backfilling quality and the later construction performance can be obviously improved by adopting the new material, and quality defects of differential settlement, cracking and the like of the backfilling part are reduced, so that the resource investment is reduced and the field construction efficiency is improved.
本发明涉及构筑物基础施工应用技术领域，公开了一种结构物台背回填新材料，其由以下质量份的原料组成：水泥70～80份、水250～320份、沙子1500～1700份；所述沙子的粒度为0.075mm筛余量不大于7％；其中，水泥为标号32.5MPa的普通硅酸盐水泥或者矿渣硅酸盐水泥或者粉煤灰硅酸盐水泥。本发明制作更简单、材料更均匀，采用这种新材料可以显著提高回填质量和后期施工性能，减少回填部位不均匀沉降、开裂等质量缺陷，以减少资源投入和提高现场施工效率。
New material for backfilling structure abutment back
The invention relates to the technical field of building foundation construction application, and discloses a new material for backfilling a structure abutment back, which is prepared from the following raw materials in parts by mass: 70 to 80 parts of cement, 250 to 320 parts of water and 1500 to 1700 parts of sand. The particle size of the sand is 0.075 mm, and the screen residue is not more than 7%; and the cement is ordinary Portland cement or Portland slag cement or Portland fly ash cement with the grade of 32.5 MPa. According to the invention, manufacturing is simpler, the material is more uniform, the backfilling quality and the later construction performance can be obviously improved by adopting the new material, and quality defects of differential settlement, cracking and the like of the backfilling part are reduced, so that the resource investment is reduced and the field construction efficiency is improved.
本发明涉及构筑物基础施工应用技术领域，公开了一种结构物台背回填新材料，其由以下质量份的原料组成：水泥70～80份、水250～320份、沙子1500～1700份；所述沙子的粒度为0.075mm筛余量不大于7％；其中，水泥为标号32.5MPa的普通硅酸盐水泥或者矿渣硅酸盐水泥或者粉煤灰硅酸盐水泥。本发明制作更简单、材料更均匀，采用这种新材料可以显著提高回填质量和后期施工性能，减少回填部位不均匀沉降、开裂等质量缺陷，以减少资源投入和提高现场施工效率。
New material for backfilling structure abutment back
一种结构物台背回填新材料
WEI WEI (author) / NING SHUNCAI (author) / ZHANG XIAOTING (author) / LIU MU (author) / WEI SHIQI (author) / MA MENGMENG (author)
2021-09-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2022
Standardized construction method for backfilling abutment back
| European Patent Office | 2024
Liquid fly ash material backfilling device for highway abutment back
| European Patent Office | 2023
Method for controlling abutment back backfilling construction quality
| European Patent Office | 2023
Bridge abutment backfilling method and backfilling structure of urban bridge
| European Patent Office | 2024