Bonding Concrete To Concrete

Overlays or patching materials of new portland cement concrete pcc terrazzo mortar grout and extruded curb based on type i through type v cements or white cement may be structurally bonded with liquid epoxy adhesives to existing concrete surfaces.

Bonding concrete to concrete.

Epoxy bonding agents this is an ideal resin for high performance and lightweight concrete parts. It can be used indoors and outdoors on concrete overlays 1 in. Let s discuss the mechanical approach first since it is really used in both approaches. The most effective way to ensure a really good bond is with a scratch coat.

In a large bucket add equal parts water and white glue and stir the mixture together. Standard specification for bonding plastic concrete to. Acrylic latex bonding agents this agent is primarily used to bond fresh concrete with a surface of old. The chemical approach involved mixing up a liquid bonding agent that helps bond new concrete products to old.

There are two basic methods for bonding a portland cement based product to existing concrete. The only product effective enough for bonding stone to concrete is the very unique power grab n bond. A bonding slurry will greatly increase the adhesion between pieces or layers of concrete. 1 chemically and 2 mechanically.

For example if you add 2 cups 470 ml of water you need to add 2 cups 470 ml of white glue into the bucket. Bonding fresh concrete to existing concrete surfaces. Concrete bonding adhesive permanently bonds existing concrete plaster and stucco to new concrete plaster and stucco. Use of epoxy compound with concrete aci 503r 80 manual of concrete practice american concrete institute p o.

Such bonding using epoxy based glues becomes as strong and frequently stronger than can be achieved by any mechanical means of connection. Chemco epoxies for astm c 881. Concrete bonding adhesive has very strong adhesive characteristics that eliminate the need to roughen up the surface of the existing substrate before applying new material. Products like sakrete top n bond and sakrete flo coat already contain polymers that greatly improve the bond of portland cement and should never be used with a liquid bonding agent.

L resurfacing with portland cement concrete nchrp 99 transportation research board december. Different types of concrete bonding agents used in construction 1.