How to apply concrete siliceous density agent?

1. Function

Concrete is slightly expanded and dense, and has functions such as moisture-proof, waterproof, anti-seepage, and anti-cracking. . The impermeability grade of concrete prepared with this product can reach p20. The frost resistance of concrete mixed with this product can reach more than 300 times. This product is suitable for c20 ~ c60 grade concrete. The cement content accounts for 16% of the cement mass.

This product mainly uses sulfoaluminate mineral resources as an expanded, dense and amorphous SiO2 component. The cement products generated are mainly Afm and Aft. It needs to be supplemented by water reduction, micro-air entrainment and concrete internal control structure. It can be adapted to the construction of concrete projects with moisture-proof, waterproof and anti-seepage systems that are more than 150m long and do not leave expansion joints.

2. Scope of use

All civil construction projects (including Chinese construction, municipal administration, water conservancy , bridges, electric power, roads, airports, seaports) and other jobs require non-shrinking, crack-proof and dense anti-seepage and waterproof concrete, especially for large water field projects, water diversion, water supply and drainage, ground engineering technology is more suitable; at the same time, we are more suitable for A concrete structure designed to resist freeze-thaw cycles in a cold area has its own unique frost resistance.

3. Technical effect

When this product is used with concrete, it should be based on the anti-permeability According to the requirements of the design grade, change the control value of "concrete expansion agent".

4. Performance and function

(1) Impermeability: This product is used for Preparing concrete or mortar with dense waterproof and anti-seepage cracks can increase the impermeability by more than 3 times.

(2) Density: Adding this product can reduce the internal porosity of concrete by more than 50%, which can effectively reduce the number of pores and large pores, thereby achieving waterproofing the goal of.

(3) Water reduction rate: changes with the mixing amount. When 16% is mixed, the water can be reduced by about 18% in the mortar, and in the concrete Reduce water by 20%.

(4) Strength: Artificial admixtures can significantly improve the strength of concrete, up to 70% in 3d, 28% in 7d, and 20% in 28d .

(5) Save cement: 16% of this product can be used instead of cement, and the compressive strength and impermeability level remain unchanged.

5. Instructions for use

When the normal temperature is not lower than 0℃, this product can be used directly Mix into concrete or mortar. To achieve uniformity, the mixing time needs to be extended by 1 minute.

6. Precautions

(1) Different dosages can be used strictly in accordance with the regulations. Manage and control the water-cement ratio, and do not increase or decrease it arbitrarily. When used in mortar, it is best to mix dry for 2 minutes, then add water and mix;

(2) When using this product, early maintenance must be strengthened to prevent concrete or mortar from losing water, which will affect the hydration of China's cement and slow down the subsequent strength growth;

(3) This product is used for mixing with Portland cement, ordinary Portland cement, pozzolana cement, fly ash cement and other concrete or mortar that meet national standards. Other varieties should pass the test before use;

(4) This product should be kept in a dry state. If it clumps or even deliquesces due to moisture, it will not fail. It can still be used after drying and crushing. </p