SUPERPLASTICIZER

Concrete Superplasticizer Overview

A water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete basically unchanged. Concrete mixture has a dispersing effect on cement particles, which can improve its workability, reduce the unit water consumption, improve the fluidity of concrete mixture; or reduce the unit cement consumption and save cement.

Types of water reducers

According to performance, it can be divided into ordinary water reducer, high-efficiency water reducer, and high-performance water reducer.
1) Ordinary water reducer refers to an admixture with a water reduction rate of not less than 8% under the condition that the slump of concrete is basically the same.

2) High-efficiency water reducer refers to an admixture with a water reduction rate of not less than 14% under the condition that the slump of concrete is basically the same.

3) High-performance water reducer refers to an admixture with a water reduction rate of not less than 25% under the condition that the slump of concrete is basically the same. Compared with high-efficiency water reducers, it has good slump retention performance, small drying shrinkage and certain air entrainment performance.

Due to the important contribution of high-efficiency water reducer to concrete modification, its application has become the third breakthrough in the history of concrete development after reinforced concrete and prestressed concrete, which has enabled concrete to develop from the original manual pouring or hanging tank pouring to pumping construction, saving manpower, improving work efficiency, ensuring quality, eliminating noise, and making a great leap in the technical level and construction level of concrete.

Naphthalene based Superplasticizer

Product Speclficatlons of Naphthalene based Superplasticizer

Naphthalene based Superplasticizer Uses in Concrete

Naphthalene-based Superplasticizer is suitable for the preparation of high-strength concrete, ultra-high-strength, early-strength concrete, anti-seepage and anti-entry concrete, pumping concrete, and self-flooding concrete. Natural curing and steam curing prefabricated components, reinforced concrete and concrete works.

1）Using the same cement dosage and maintaining similar compatibility, the product can improve compressive strength by 50-90% in 3 days, 60-70% in 7 days, 30-60% in 28 days, and 500-800# concrete can be prepared with 525# ordinary silicate cement mixed with FDN high-efficiency water reducing agent.

(2) Mixed with 0.5-1.0% (cement dosage), FDN slump can be increased from 3-5 cm to 15-20 cm.

(3) High water reduction rate, in the mixture of similar slump, mixed with FDN, its water reduction rate of up to 15-20%.

(4) saving cement, late strength and ease of the same case can save about 20% of cement; early strength, in the case of improving the late strength and ease of the same case, can save about 10-20% of cement.

5) It has good adaptability to common silicate cement, slag cement and fly ash cement.

(6) Good adaptability to steam curing can shorten the curing time, reduce the curing temperature to save energy and improve production and quality.

(7) After the concrete is mixed with naphthalene, high efficient water-reducing agent, its freezing and thawing properties are sometimes significantly enhanced, the impermeability and durability of concrete are improved, the shrinkage of concrete is reduced, and there is no unfavorable effect on the carbonization of concrete.

(8) It has no corrosion effect on steel  for concrete pouring and shaping projects.

Packaging and storage of Naphthalene based Superplasticizer

Hydroxyethyl cellulose is packed in film coated plastic bags with net weight of 25 kg.

Avoid rain during storage and transportation.

Fireproof and moisture proof.