Bond Cement To Concrete

This is a real disadvantage when bonding stone to concrete because there is a lot of movement due to temperature climate change.

Bond cement to concrete.

Aci 503 details the use and specification of epoxies for bonding fresh to hardened concrete. Download the pdf version of this article. Make sure all of the old concrete has a layer of slurry on top of it before you move on. The cement present in a concrete mix does not have any bonding agent within it.

Let s discuss the mechanical approach first since it is really used in both approaches. Brush a thin layer of the slurry mixture onto the old concrete. Such bonding using epoxy based glues becomes as strong and frequently stronger than can be achieved by any mechanical means of connection. Cement adhesive flow control concrete bonding adhesive quikrete concrete additives acrylic polymer emulsion hydrophobic sand.

Brush the slurry over the damp concrete to form an even layer. 48 1 kb today it is possible to bond any material including concrete itself firmly and permanently to a hardened concrete surface. The sand should pass the no. The most effective way to ensure a really good bond is with a scratch coat.

1 chemically and 2 mechanically. So a bonding agent must be introduced between the layers. Before you add your new concrete take a large brush and dip it into the bonding slurry. When a layer of fresh concrete is added over an existing or old concrete layer they exist as two separate layers without any bond.

There are two basic methods for bonding a portland cement based product to existing concrete. This incredibly pioneering product in the field of construction adhesives will bond stone to concrete immediately.