● Product Introduction

① SY-HEA high-performance crack-resistant waterproof agent implementation standards: GB23439-2017, JC474-2008, is a new type of high-performance crack-resistant waterproof agent independently developed by our company, which is currently the only crack-resistant waterproof agent on the market that has three expansion sources and simultaneously implements the standards for expansion agents and waterproof agents.

②First, when added to cement, it can generate a large number of mineral phases with cement hydration products, causing the concrete to produce micro-expansion. Due to the restriction of steel bars, etc., the steel bars are subjected to tensile force to generate a pre-pressure stress of 0.2-0.8 MPa, which can effectively compensate for the shrinkage and cold shrinkage of concrete. At the same time, the generated crystals block and cut off the capillary channels to make the concrete denser.

③Secondly, due to the introduction of various proportions of redispersible polymer, it can cause the volume to produce moderate micro-expansion when encountering water, achieving the function of blocking capillary channels. After the water evaporates, a dense film is formed, making the capillaries a spherical closed structure, thereby greatly improving the self-waterproof ability of concrete.

④Furthermore, due to the introduction of redispersible polymer, on the one hand, the material dispersion performance in the internal structure of the concrete is enhanced, the internal structure of the concrete is more uniform, the capillary channels are more fine and uniform, and the impermeability, frost resistance, and low-temperature resistance of the concrete are further enhanced. On the other hand, the bonding performance between the interfaces of the concrete constituent materials is improved, which greatly improves the compressive strength and tensile strength of the concrete. The corrosion resistance and chemical corrosion resistance of the concrete are greatly improved, so it can improve the durability of the concrete more than other types of expansion agents or waterproof agents.

⑤Finally, since the alkali content of all raw materials of SY-HEA high-performance crack-resistant waterproof agent is extremely low, it can effectively inhibit the occurrence of alkali-silica, alkali-silicate, and alkali-carbonate alkali-aggregate reactions, ultimately achieving the characteristics of self-waterproof, acid-base resistance, high strength, high performance, and high durability of concrete.

Technical Performance

①Dosage: 6%-8% (based on the total amount of cementitious materials);

②The limited expansion rate of shrinkage-compensating concrete cured in water for 7d ≥0.035%, the greater the expansion rate requirement, the higher the dosage;

③Alkali content <0.4%;

④Impermeability grade ≥P30; Frost resistance grade ≥F300;

⑤Through technical combination, composite calcium-magnesium materials are introduced into the base material, which greatly improves the limited expansion rate of concrete and promotes the early strength of concrete. At the same time, due to the introduction of various proportions of polymer materials, the self-waterproof capacity of concrete is greatly improved, and the impermeability of concrete is significantly improved;

⑥Due to the introduction of special calcium materials, the later shrinkage of concrete added with SY-HEA high-performance crack-resistant waterproof agent is greatly reduced, so the crack resistance and impermeability effect and capacity of the project are greatly improved;

⑦The main expansion sources all adopt the calcination clinker process and technology to make the quality of SY-HEA high-performance crack-resistant waterproof agent more stable; three expansion sources, low dosage, high expansion rate, high strength, low alkali, low shrinkage rate, good pumpability and admixture adaptability, etc., are the preferred materials for preparing various high-performance concrete;

⑧Due to the self-compacting properties of this product and the role of redispersible polymer, the wear resistance, chemical corrosion resistance, carbonation resistance, and alkali-aggregate reaction resistance and other durability performance of concrete are greatly improved.

Scope of Application

①Crack-resistant and waterproof rigid structure self-waterproof projects.

②Seamless design and construction of ultra-long structures.

③Application in crack-resistant projects of mass concrete.

④Application in high-performance concrete (HPC).

⑤Other special projects with crack-resistant and waterproof technical requirements.

● Precautions

①When adding this product, accurate measurement and uniform mixing are required.

②If there are small lumps, they can be crushed before use without affecting the performance.

③Moisture retention and insulation curing, the prescribed curing time should not be less than 14 days.

④Different parts of different projects should have different dosage requirements.

⑤This product is not suitable for boiling tests and steam-cured concrete.

● Packaging, Storage, and Transportation

①Packaging: Packed in woven bags with inner lining of plastic film, specification: 50±1kg.

②Storage: It should be stored in a ventilated and dry place, paying attention to preventing damage and dampness; the shelf life is two years.