WUHAN HUAXUAN KH-EARLY STRENGTH

KH-ES is a kind of early strength PCE superplasticizer that accelerates the development of early strength of concrete.

This type of PCE superplasticizer can accelerate the process of cement hydration, improve the early strength of concrete, and have no significant effect on the later strength.

KH-ES is suitable for making precast concrete elements with rheoplastic concrete having fluid consistence, no segregation and low water cement ratio, and consequently high early and long-term strengths.

Standards Compliance

KH-ES complies with the requirements of the following standards: ASTM C 494, Type E & F. BS EN 934-2.

Typical Properties

Items	Specification
Visual Appearance	Light Yellow Liquid
Chloride ion content (by solid content),%	≤0
Na2O+0.658K2O (%)	≤10.0
Solid Content (%)	52.0±2.0
Density (23℃) (kg/m3)	≥1.05
pH value	8±2
Na2SO4 Content (%)	≤5.0
Formaldehyde content (by solid content)，%	≤0.05
Solubility	Completely soluble

Special Features

KH-ES offers the following benefits for the precast concrete industry to:

-Extremely high water reduction

-High early strength development

-Horter demoulding time

-Energy-saving (reduced steam curing)

-Produce Rheoplastic and Rheodynamic concrete having a low water cement ratio

-Optimize the curing cycles by reducing curing time or curing temperature

-Eliminate the heat curing

-Eliminate the energy required for placing and compaction and curing

-Increase productivity

-Improve surface appearance

-Produce durable precast concrete elements as per EN 206-1

As compared to the traditional superplasticizers, the engineering properties such as early and ultimate compressive and flexural strengths, bond to steel, modulus of elasticity, shrinkage, creep, and impermeability are improved.

Usage

It's can be widely used in ordinary concrete and high performance concrete, especially having excellent performance in high performance concrete of early strength.

It's can be applied in industrial and civil construction, pumping concrete construction in hydraulic project, port, traffic, municipal and railway. It can also be used for making special concretes, such as high strength, ultrahigh strength, high impermeability, early strength, self-leveling and steel fiber type.

Advantages

(1) High water reducing rate: The dosage range is 0.3 — 0.8%. The recommended dosage is 0.5% of cementitious material. According to ASTM C 494 type E & F “Concrete Admixtures” standard test, water reducing rate is above 28%. Water reducing rate can be above 30% under optimal dosage (confirmed by lab test). Cement-saving rate is 15-20%.

(2) High early strength: concrete compressive strength ratio is above 180% after 1 day, above 160% after 3 days, 150% after 7 days, and 40% after 28 days, if our product is used under optimal dosage. Concrete long-term strength will also be enhanced obviously.

(3) Long durability: PC-E, with low chloride and alkali content, can decrease concrete long-term air shrinkage and shrinkage crack. Concrete shrinkage ratio will be less than 110%. Suitable air content and foaming structure will ensure concrete long durability if our product is used. It is far beyond the post-performance of both traditional naphthalene and acetone sulfonate formaldehyde early strength superplasticizers.

(4) Safety: non-toxic, no radiation, non-inflammable, no corrosion for steel bar or aggregate, and no formaldehyde, or aromatic residues harmful for human. Our product complies with the current environmental friendly standard of interior and exterior construction.

Dosage

Dosage range:0.3%–0.8% weight of cementitious material.(calculated according to KH-ES)

Recommended dosage: 0.4% weight of cementitious material (calculated according to PC-ES). Concrete lab test for optimal dosage is required before usage or cement changing.

Packaging, Storage and Transport

1) Our product can be packed in 200L or 1000L plastic drum according to customer’s requirement.

2) It should be stored in a cool and dry place.

3) Shelf life is 1 year. It can also be used after shelf life, if concrete test is qualified.

Health & Safety Precautions

Polycarboxylate Superplasticizer does not fall into the hazard classifications of current regulations. However, it should not be swallowed or allowed to come into contact with skin and eyes. Suitable protective gloves and goggles should be worn. Splashes on the skin should be removed with water. In case of contact with eyes rinse immediately with plenty of water and seek medical advice. If swallowed, seek medical attention immediately and do not induce vomiting. For further information, refer the Material Safety Data Sheet available for this product.

Important note

HUAXUAN endeavors to ensure that the technical information contained herein is true, accurate and represents our best knowledge and experience. No warranty is given or implied, as HUAXUAN has no control over the conditions of use and competence of any labor involved in the application

As all HUAXUAN technical data sheets are updated on a regular basis, it is the customer’s responsibility to check that the product is suitable for the intended application, and that the actual conditions of use are in accordance with those recommended.