Process Requirements Of Gaodetec Cement Grout Pump

Gaodetec cement grout pump is widely used in mine, tunnel, water conservancy, subway, construction, bridge and other construction sites of grout water, filling voids, reinforcement of broken rock formations and other projects.

When using Gaodetec cement grout pump, the grout medium must be strictly required and the correct process is used to ensure successful grouting. So Gaodetec has the following suggestions to share with you:

First, cement grout pump on the medium requirements

1. Choose high-quality silicate cement as a medium;

2. The fineness mode of medium sand or coarse sand should be greater than 2.5, and the mud content should not be greater than 3%;

3. When using water glass as a grouting medium, the particle size of the medium should not be greater than 15mm;

4. When using the alkaline accelerator, the medium must not be doped with active silica;

5. The medium should not contain too many impurities, the moisture content is controlled at 10% to 15%;

6. The initial coagulation time of the fast coagulant should not be greater than 5 minutes, and the final coagulation time should not be greater than 10 minutes;

Second, cement grout pump on the process requirements

1. When grouting, the grouting pressure is 0.4Mpa, the water pressure is about 0.1Mpa higher than the wind pressure, the water added is controlled by the shooter's experience, and the water ash ratio is 0.4-0.5;

2. After the grouting is completed, the timely re-injection is required, first of all, the old tape is laid on the site in order to collect the rebound material, the rebound rate shall not exceed 15%;

3. After the grouting is completed, timely re-injection is required, the interval between re-injection shall not exceed two hours, otherwise, the high-pressure water should be applied to re-re-re-flush the spray surface;

4. Grout process, according to the change of discharge, timely adjustment of water supply, to ensure that the water ash ratio is accurate, requires the grout medium no dry spots, no flow, strong stickiness, less rebound;

5. After the grouting is over, the rebound medium requires timely recovery, and the mixing is clean on duty,

6. The grouting process should be first inside and back, first up and down, the gun head and the grout surface as far as possible to maintain vertical, the vertical distance between the gun head and the spray edgy surface requires 0.8m-0.1m.

Hopefully, our Gaodetec cement grout pump for sale will better help our customers complete their projects