It is manufactured from a unique blend of surfactants, which ensures consistent performance of mortars. Powdered Mortar Plasticiser improves the workability of mortar for masonry, brickwork and sand/cement rendering. In addition, it increases the resistance of the mortar to frost by entraining air.

• Easily handled
• Replaces lime
• Increases frost protection
• Reduces shrinkage and crazing
• Chloride-free
• BS EN 934

Packaging:
25kg plastic tubs

Coverage:

The post Powder Mortar Plasticiser first appeared on Caltra Building Products.

It is a by-product from the production of ferrosilicon alloys. In conventional concrete, water reacts with the cement to form crystals, which grow and densify to bond aggregate particles together. Microsilica reacts with free lime to produce calcium silicate hydrate crystals which grow to fill the voids which would otherwise be occupied by pore water.

• Increases concrete density
• Increases compressive strength
• Improves mix cohesion
• Improves abrasion resistance
• Reduces permeability
• Reduces risk of ASR

Packaging:
25kg bags

Coverage:

The post Microsilica first appeared on Caltra Building Products.

This protects concrete from rapid evaporation during curing. When used as recommended Larcure 90 will not damage concrete or impair its properties. Larcure 90 contains no flammable solvents and can be used indoors without provision for ventilation.

• Non-flammable
• Ideal for use in areas of poor ventilation
• Prevents rapid drying out
• Easily applied
• Approx. 90% efficiency

Packaging:
25l and 200l packs

Coverage:
2Approx. 4-5m2/l per coat

The post Larcure 90 first appeared on Caltra Building Products.

It is a highly concentrated calcium chloride based liquid admixture formulated to accelerate the setting time of cement based mixes in cold weather and increase the rate of hardening of concrete and other cement mixes.

• Accelerates setting times
• Increases early strengths
• Ideal in cold weather conditions
• Helps prevent frost damage in newly placed materials
• Chloride-based
• Meets BS EN 934-2 Table 6

Packaging:
5L, 25L, 200L or Bulk

Coverage:
0.25 – 2.5L per 25kg cement (1-10%)

The post Rapid Hardener & Frostproofer first appeared on Caltra Building Products.

• EASY TO USE
• LOW DENSITY CONCRETE
• SELF-LEVELLING FLOWABLE FILL
• ECONOMICAL VOID FILLING

Packaging:
5L containers

Coverage:
5L / 6m3 of concrete

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It is manufactured from a blend of specially selected synthetic surfactants. Extra Strength Mortar Plasticiser improves the workability of mortar for masonry, brickwork and sand/cement rendering. In addition, it increases the resistance of the mortar to frost by entraining air.

• Tested to BS EN 934
• Reducing the water requirement
• Replaces lime
• Increases frost protection
• Reduces shrinkage and crazing
• Chloride free

Packaging:
5L, 25L and 200L

Coverage:
0.3 – 0.5 L per 100 kg cement

The post Extra Strength Mortar Plasticiser first appeared on Caltra Building Products.

Chemcrete SRA acts by reducing the surface tension of the water in the pores and therefore reduces the internal forces in the concrete. Generally, this leads to a 50% reduction in both plastic shrinkage and drying shrinkage initially and at 28 days with a 30% reduction at one year and later.

• Reduces Drying Shrinkage
• Reduces Cracking
• Allows for increased bay sizes

Packaging:
1L containers

Coverage:
Typically 10-25ml per 25kg cement

The post Chemcrete SRA first appeared on Caltra Building Products.

REFLOW 70 is specifically formulated to provide high water reduction and/or flowability with excellent stability and resistance to segregation. This makes it ideal for all high fluidity concretes, both in readymix and precast applications.

REFLOW 70 is particularly suitable for flowing precast applications allowing easy filling of complex formwork without segregation, bleeding or sand runs to give the perfect finish.

• Excellent Flow
• Very Good Stability & Slump Retention
• Ideal for SCC and flowing concrete

Packaging:
25L, 200L and bulk

Coverage:
0.4 – 1.2L per 100kg cement

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RECAST 16 is specifically formulated to provide exceptionally high water reduction and/or flowability with very high early strength development. This makes it ideal for all Precast Concrete production, particularly where automated methods are used.

By increasing early strengths, formwork can be stripped earlier, curing cycles can be optimized and damages are reduced. This in turn increases productivity and helps to reduce overall costs.

• Reduced Setting Time
• Very High Water Reduction
• Excellent Early Strength Development
• BS EN 934-2 Table 3.1/3.2

Packaging:
25L, 200L and bulk

Dosage:
0.25 – 0.75L per 100kg cement

The post Chemcrete RECAST 16 first appeared on Caltra Building Products.

REACT 2 is particularly suitable for balancing and stabilising lean mixes, poorly graded aggregates and mixes with low fines content. It is ideally for reacting to segregation and correcting mixes which may otherwise be rejected.

Packaging:
25L, 200L and bulk

The post Chemcrete REACT 2 first appeared on Caltra Building Products.