A crystalline waterproofing admixture, also known as a crystalline waterproofing liquid, is a type of chemical additive used in concrete and mortar mixtures to enhance their waterproofing properties. It is typically in liquid form and is added directly to the mix during the batching process.
The primary function of a crystalline waterproofing admixture is to create a crystalline structure within the concrete or mortar. When the admixture comes into contact with moisture, it reacts chemically and forms insoluble crystals. These crystals penetrate deep into the concrete matrix, filling the capillary pores and micro-cracks.
As a result, the crystalline waterproofing admixture provides long-lasting protection against water penetration. It effectively seals the concrete and improves its resistance to water under both hydrostatic pressure and negative side water pressure.
The advantages of using a crystalline waterproofing admixture include:
Enhanced durability: The crystalline structure formed within the concrete increases its resistance to water, chemicals, and other deleterious substances, thereby improving its overall durability.
Permanent solution: The waterproofing effect is permanent as the crystals remain within the concrete, providing continuous protection throughout the structure's lifespan.
Increased concrete strength: The crystalline admixture can also contribute to the strength development of the concrete, improving its overall structural integrity.
Cost-effectiveness: Using a crystalline waterproofing admixture can eliminate or reduce the need for external waterproofing membranes or coatings, resulting in cost savings.
Simplified application: The liquid form of the admixture makes it easy to mix and apply during the concrete batching process. It can be used in various concrete applications, including foundations, basements, tunnels, water tanks, and swimming pools.
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