Polymer Latex Cement Modifier

The concept of latex-hydraulic cement mix design was introduced in the year 1923. But practically, the use of latex modified mortars and concretes started in the 1960s. In almost all developed countries like America, Europe, Japan, and USSR the practical application were started in the 1960s only.Latex - cement combination in cement mortar and concrete is governed by both the cement mortar and concrete is governed by both the cement hydration and latex polymer film formation processes in their binder phase. In the process, a 'co-matrix' phase is formed by both cement hydration & polymer film formation. The properties of ordinary cement mortar and concrete are generally improved to a great extent by latex modification. In latex modified mortar and concrete, it appears that the micro cracks are bridged by the polymer films or membranes which prevent crack propagation and simultaneously, a strong cement hydrate-aggregate bond is formed. The sealing effect due to polymer film formed in the structure also provides a considerable increase in water-proofness, resistance to chloride ion penetration, moisture transmission, carbonation, oxygen diffusion, chemical resistance, and freeze-thaw durability. We offer Polymer Latex Cement Modifier available under the brand name Hydracrete – SBR. The Polymer Latex Cement Modifier, offered by us, is especially developed material ensuring quality and durability. Polymer Latex Cement Modifier can be availed at relatively affordable price from us.

Benefits

• Easy to mix & use
• Provides good workability.
• Markedly improved water retention-help in cement hydration.
• Resistance to bleeding and segregation is excellent.
• A noticeable increase in tensile and flexural strength but no improvement in compressive strength.
• The surface hardness of latex modified concrete is improved
• Provides a higher deformation, ductility and elasticity - modulus of elasticity is smaller (0.001-10 x 104 kgf/cm2)
• then the conventional concrete (10 - 30 x 104 kgf/cm²)
• The drying shrinkage may be smaller dependent on latex / cement ratio.
• Latex modified mortar and concrete usually have coefficient of thermal expansion equal to or slightly more than that of conventional concrete.
• Modification reduces water absorption, water permeability, water vapor transmission.
• Improves water-proofness.
• Improved bond strength to various substrates.
• Excellent impact resistance
• Resistant to alkalies but not resistant to inorganic-organic acids and sulfates.
• The chloride ion permeability is low
• Improved resistance to freezing & thawing.

End Uses

• Typical areas of Latex - modified concrete and mortars
• Paving & Flooring : General house flooring, warehouses, office, shops, toilet floors, stairs, passages, chemical plant, railway platforms, roads and garages.
• Water Proofing : Roof decks, block walls, water tank, swimming pool, septic tanks & silos.
• Adhesives (Bonding Agents) : For boning of heat insulating materials, old and new concrete & mortar & repair of cracks.
• Anticorrosive Lining : Effluent drains, chemical factory floors, grouting of acid proof tiles, septic tanks, foundations for machinery plants etc.
• Deck Coverings : Ship decks, bridge decks & footbridge decks.

Application The mix proportions of latex modifiers concrete & mortars cannot be easily determined unless trials are conducted. By our technical date generation we have found the following suitable mix designs: Shelf Life : One year from the date of manufacture. Storage : Store at a cool & dry place, strictly away from sun heat Packing : 5, 10, 35 liters plastic jars and drum.