SJ-51 Prestressed Pipe Grouting Material

Product Description

I. Product Application Scope

This product meets the requirements of "Q/CR409-2017" for high-performance grouting materials for prestressed ducts in rail transportation.

Section II: Application Fields

1. Prestressed concrete beam grouting pipeline: 2. Equipment foundation, auxiliary rods, and other structural components grouting

3. Nuclear Power Plant Shell Grouting 4. Concrete Drainage, Crack and Hole Repair

III. Performance Specifications:

Serial NumberInspection ItemsPerformance specifications

1Initial setting time

（h）Initial setting≥4

2 Final solidification≤24

3Liquidity

（s）Out-of-machine mobility18±4

4 30-minute flowability≤28

5Bleeding rate

（%）24-hour self-bleeding rate0

6 3-hour capillary wicking rate≤0.1

7Pressure Bled Rate

（%）0.22MPa

(When the borehole vertical height ≤ 1.8m)

≤3.5

8 0.36MPa

(When borehole vertical height ≤ 1.8m) 

9Filling levelQualified

107D strength

（MPa）Flexural resistance≥6.5

11 Pressure-resistant≥35

1228d strength

（MPa）Flexural resistance≥10

13 Pressure-resistant≥50

1424-hour Free Swelling Rate (%)0-3

15Corrosive effects on reinforcing steelRust-free

16Gas Content (%)1-3

17Chloride content (%)0.06