Concrete Producing Systems

KingAdd 77WP^®

Powder waterproofing admixture.

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Packaging

Bag

Standards

1 cited

BS 5075

Overview

KingAdd 77WP is powder waterproofing admixture formulated from selected organic salts specially designed to reduce the permeability in all cement based mortars, screeds and concrete. KingAdd 77WP blocks the natural pores in the mix and imparts the hydrophobic properties which reduce moisture permeability.

Applications

KingAdd 77WP is a waterproofing admixture for use in all cement based mortars, screeds and concrete

Advantages

Improves durability by minimizing penetration of moisture and water based chemicals
No additional water into dry or semi-dry mixes
Reduces efforescence and pigment leaching from cement mortars
Chloride free
COMPATIBILITY KingAdd 77WP can be used with all types of Portland cement and cement replacement materials. KingAdd 77WP is compatible with other KINGKRETE admixtures used in the same concrete mix. If more than one type of admixture is to be used in concrete mix, they must be dispensed to the concrete separately

Technical Properties

Property	Value	Standard
Colour	White	—
Chloride content	: Nil EFFECTS OF OVER DOSAGE KingAdd 77WP over dosage will increase air entrainment which may cause a reduction in the compressive strength. POINTS TO BE CONSIDERED IN WATERPROOF CONCRETE Lower water to cement ratio gives lower permeability concrete. Good concrete placing and compaction are very important to produce waterproof concrete. Fresh concrete should be protected against rapid drying and cured properly. Cold joints must be avoided.	BS 5075