Additives

Additives are used to increase the durability, quality, life expectancy, and aesthetic appeal of concrete.

At Westland Concrete, we work with our customers to determine if additives are appropriate for their upcoming concrete pour. We take into account factors such as end use, climate, and traffic when making a recommendation.

We carry a number of additives for different applications, and we keep on top of new technologies and products that could make our concrete projects better. Below are some of our most popular products.

Additives used during concrete placement

Hard Cem Integral Concrete Hardener
Hard-Cem is a concrete hardener developed for ready-mix and pre-cast concrete applications. Unlike surface applied hardeners which are labor intensive, problematic for quality control and unsuitable for air-entrained concrete, Hard-Cem is added to the concrete mix during the batching operation therefore hardening the complete depth of the slab unlike surface applied hardeners that only harden the surface. Hard-Cem is the only hardener of its kind that can be utilized in air-entrained concretes.

Delay Set (Large & Small)
Delays the hydration process (essentially puts the concrete to "sleep" for an hour). We use this when the concrete will be travelling long distances, and on hot days to ensure the integrity of the concrete when it's poured.

Fibermesh
Synthetic fibers added at the batch plant that help prevent surface cracking due to wind and exposure, and helps with additional strength when pouring thin slabs (repairs on existing slabs).

Accelerators (HE 122 & Calcium Chloride)
Accelerators are designed to make more uniform and predictable quality concrete while accelerating setting time and strength development. Accelerators are primarily used in cold weather to encourage earlier finishing of slabs (therefore reducing labor costs). In addition, the slab does not need to be protected from the elements for as long as normal.

High Range Water Reducers (Super Plasticizers)
The addition of a Super Plasticizer allows the ease of finishing and flow ability needed without changing the chemical makeup of concrete. The addition of water to concrete will change the concrete strength and can cause problems after the concrete is cured (scaling of surface, weakness and popouts). Super Plasticizers increase the slump of concrete (wetness) without the addition of water therefore not compromising the concrete mix.

Bonding Agents (SikaLatex R)
Bonding Agents act like a "White Glue". They are used when pouring fresh concrete on top of cured concrete (typically when repairing a top). The bonding agent helps adhere the new concrete to the old.

Concrete Colour (Interstar Integral Colour)
We carry a wide range of colours to suit any design preference. The colour is designed to be added at the batch plant directly into the concrete mix, providing a uniform colour throughout the depth of the slab. View available colours.

Additives used during concrete finishing

Delay set Compounds (Top Stop (Vertical & Horizontal) & Rugasol)
Delay set compounds are used when an exposed concrete effect is desired (round rock showing through). The compound is either brushed or sprayed on the forms (before placing concrete) or the top of slabs (immediately after finishing) to retard the top layer of concrete "cream" which will allow it to be sprayed off (once the concrete has set) exposing the rock below.

Concrete Release
A powder that is available in a wide variety of colours that is sprinkled directly on a freshly finished slab before stamping. The release agent has a dual purpose: it allows the concrete stamp to be "released" from the wet slab creating a well-defined imprint of the stamp and it produces a "marble" look on the slab.

Control Finish
We use this additive during the finishing process to protect the slab from the elements (wind, sun, heat).

Curing / Sealing Compound (Protec III)
Can be applied as soon as fresh concrete is finished. It has a dual purpose as it helps protect the concrete during the curing process (from the elements), and seals the concrete for long-term protection.

Additives used after concrete has cured

Sealers – High Gloss & Clear Acrylic
Sealers protect slabs from contaminants and weather. They should be reapplied yearly for maximum results.

High Gloss (Vocom 25 & Cornerstone Premium Acrylic)
A high gloss finish that is typically used for decorative slabs (exposed, colour or stamped finishes). It should not be applied until concrete has cured for at least 28 days.

Clear Acrylic (Vocom 20)
A clear finish typically used on driveways, sidewalks and garage slabs with a standard finish. Should not be applied until concrete has cured for at least 28 days.

Additives used for concrete repairs

SikaFlex 1A
Used to fill in cracks and cut lines in concrete. Designed for all types of joints with maximum depth of 13mm and a maximum expansion of 35%. It can be ordered in a variety of colours to match with existing coloured concrete.

Concrete Renew
A repair product that is used to fill larger cracks and surface problems (popouts and scaling).

For a complete listing of available additives, please contact us.

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