Introduction to the construction process of Steel Structure grouting reinforcement, come and collect it!
2025-07-22
Rising Steel Structure
Introduction to the construction process of grouting reinforcement, come and collect it!
Grouting reinforcement is a construction method. The cement material is composed of mud, loose sand or water-bearing strata, cracks, caves and broken zones to solidify it. After the mud solidifies and hardens, it plays a role in cementing and plugging, stabilizing the strata, isolating water sources, and ensuring smooth construction. What are the construction requirements for grouting reinforcement? Let's take a brief look at it together.
1. The grouting pressure for splitting grouting in sandy soil should be 0.2-0.5 MPa, and in clay soil, 0.2-0.3 MPa should be selected. For compaction grouting, when using cement mortar, the slump should be 25-75 mm and the grouting pressure should be 1-7 MPa.
2. When the slump is small, the grouting working pressure is to be as high as possible above the upper limit. When using cement water glass double liquid fast setting slurry, the grouting pressure should be less than 1MPa.
3. For the treatment of soft soil, cement-based slurry or a mixed slurry of cement and water glass can be selected. Under the condition of groundwater flow, liquid cement slurry with a single method should not be used. The spacing between grouting holes is 1.0-2.0m, and the reinforced soil should be integrated in plane and depth.
4. The grouting volume and effective range should be determined by on-site grouting tests. In clay foundations, the grouting rate should be 15%-20%, and the thickness of the surface soil layer at the grouting point should be greater than 2m.
5. The initial setting time of the slurry should be determined according to the soil conditions of the foundation and the purpose of grouting. In sandy foundations, the initial setting time of the slurry should be 5-20min, and in clay foundations, it should be 1-2h.
