Pile foundation cement grouting agent

1. Product Introduction

Pile foundation cement grouting agent is a multi-functional concrete additive specially used for pile foundation engineering. This product has the function of reducing water expansion, which can greatly increase the bearing capacity of a single pile and reduce settlement. It is an ideal choice for pile foundation projects.

2. Scope of application

This product can be mixed with ordinary cement, slag cement and other cements, and is suitable for various types of cast-in-place piles, powder spray piles and deep mixing piles. Waiting for projects.

3. Technical performance

1. Good water reduction and enhancement effect: 12% of this product mixed with water can reduce water by more than 20%, and the compressive strength can be increased by more than 30% in 28 days.

2. Good slump retention performance: concrete mixed with this product has basically no slump loss for 15 hours, and can meet the requirements of ready-mixed concrete.

3. Significantly improve the workability, pumpability and pourability of concrete, reduce bleeding and stratification, and also reduce the "spring" and "sand lines" of engineering piles. Thereby improving the quality of the pile body.

4. Concrete mixed with this product has a certain retarding effect, which effectively avoids the occurrence of engineering accidents such as non-densification and broken piles due to accelerated hardening of concrete due to hydration.

5. The concrete mixed with this product has a certain expansion value. When cured in water for 28 days, the free expansion rate reaches 7.0-10.4×10-4.

6. It can increase the vertical bearing capacity of a single pile by more than 15% and reduce the settlement by about 20%.

4. Homogeneity index

5. Usage and Precautions

1. Dosage: Recommended dosage is 8-10% (based on the amount of cementitious material)

2. It should be added to the mixer together with cement, sand and stone, and must not be dissolved in advance.

3. The mixing time should be appropriately extended.

4. There is no need to add other water reducing agents or pumping agents.

6. Packaging and storage

This product is packed in lined plastic bags, 25kg per bag. It should be stored in a dry and cool place and be protected from moisture. The shelf life is one year.</p