HCSA Cement 92.5MPa

Product Description:

HCSA BINDER is manufactured under a strict quality assurance systems GB/T 19001-2000 and GB/T 24001-1996 which accommodates the

Chemical Analysis

The chemical analysis of HCSA BINDER has been determined according to the following:

GB/T 176-1996 Methods of chemical analysis for cement

Main constituents (%) 

Fineness

Specific Surface Area: according to standard GB/T 8074-1987

Usual range:       360~430 m2/kg

Specification limit:  >360 m2/kg

Reactivity with Portland cement

HCSA BINDER may be used in combination with other mineral products, for example PORTLAND cement, calcium sulphates and fillers, or with organics such as polymers in latex form or in redispersible form.

Depending on the type of mixes and technology employed, HCSA BINDER can be used to obtain and control various properties.

The behaviour of PORTLAND cement is vary variable. In general, acceleration of set increases progressly with the addition of HCSA BINDER. The amount of HCSA BINDER needed to obtain a specific setting time varies considerably depending on the origin of the PORTLAND cement and performance can be modified with the use of additives.

The strength development of HCSA BINDER/PORTLAND cement and/or Calcium Sulphates depend on the nature of the PORTLAND cement and/or Calcium Sulphates used. In general these mixes will develop mechanical strength at a very early stage (several hours). With some type of PORTLAND cements and in formulated products containing additives which control the setting and hydration, the long term properties is similar to those of the original PORTLAND cement, however it is necessary to check the behaviour of each PORTLAND cement used.

The characteristics of PORTLAND cement to be considered are:

1.    C3A content

 2.    Mineral admixture type and content

 3.   Type of Calcium Sulphate used

Additives will also influence the properties of these mixes:

1.   Setting time

2.   Rheology

3.   Mechanical performance

These properties are applied to obtain a wide range of products:

1.   Fast setting cements

2.   Rapid hardening mortars

3.   Tile adhesives

4.   Self-leveling compounds

5.   Non-shrink grouts

6.   Water stopping mortars

7.   etc.

With a careful selection of the constituents (OPC, calcium sulphates, additives), it is possible to create mixes with a range of different hydraulic properties:

1.    Adjustable setting time

2.    Rheology adapted to the application

3.     High early strength

4.     High long term strength

5.    Shrinkage compensation

Use of Additives

HCSA BINDER may be used in combination with chemical additives such as:

1.   polymers, either in latex form or redispersible powder form

2.   defoamers

3.   retarders

4.   accelerators

5.   plasticizers/superplasticizers

6.   rheology modifiers

7.   fibers