Concrete Mixes and Additives

Mixing Concrete
Mixing Concrete in a Drum Mixer | CHENG Concrete Exchange

For projects, like a concrete countertop, motorized concrete mixers are necessary. They can be rented from your local hardware store or purchased. Mixers come in different volumes, the most common is a 9 cubic foot mixer.

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Hand Mixing Concrete
Mixing Concrete in a Wheelbarrow | CHENG Concrete Exchange

Small batches of concrete can easily be hand mixed in a wheel barrow to avoid the cost and inconvenience of a motorized concrete mixer.  We really think a 60-80 pound batch is ideal for mixing with this method. Hand mixing concrete….

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How to Slump Test Concrete
Concrete Slump Test | CHENG Concrete Exchange

A concrete slump test is used to determine the correct water content in a batch of concrete. “Slump” is the distance, measured in inches, the concrete settles after the slump cone is removed. A concrete batch with high slump is…

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Pro-Formula Concrete Countertop Mix
Pro-Formula Concrete Countertop Mix | Concrete Exchange

CHENG Pro-Formula Countertop Mix is an all-in-one formulation developed to take the guesswork out of measuring and mixing multiple ingredients to make pre-cast concrete countertops. These instructions explain how to…

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Outdoor Concrete Pro-Formula Mix
Outdoor Concrete ProFormula Mix | Concrete Exchange

CHENG Outdoor Concrete Pro-Formula uses the finest grade fade-resistant color pigments, crack-prevention fibers, freeze-thaw and water-reducing additives. It allows you to make concrete in an array of colors for outdoor projects.

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CX Pour-In-Place Concrete Countertop Pro-Formula

NeoMix Original Concrete Countertop System | Concrete Exchange

CX Concrete Countertop Mix is ideal for poured-in-place concrete countertops and more.  Three separate components: Admixture, Water Reducer and Pigment are pre-packaged for easy blending with your local mix.

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Fiber Reinforced Concrete
Mixing Fiber Reinforced Concrete | CHENG Concrete Exchange

Learn how to blend GFRC mixes like Surecrete’s Xtreme Series Concrete Mixes or CHENG D-FRC Concrete Mixes. In this guide we’ll use Collomix’s Dual-Paddle Mixer to quickly blend even the toughest fiber reinforced concrete mixes.

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Mixing  Fiber Reinforced
Backer Mix
GFRC Backer Mix | Concrete Exchange

GFRC backer mix is typically the most challenging of all the concrete mixes to blend. The high fiber content and low water amounts dramatically increase its chances for clumping. We’ve discovered that a double-paddle mixer works best.

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How to Modify Power-Tex Hopper Gun Nozzle
Modifying the Power Tex MK3 Spray Gun Nozzle | Concrete Exchange

The Power Tex Hopper Gun is sold with a set of 5mm and 7mm spray nozzles of which we only use the 7mm to spray face coat mixes. We take the 5mm nozzle and bore it out to 5/16″ to allow spraying thick fiber reinforced concrete mixes.

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