Construction World April 2017

the CHRYSO

Cure range. Another useful

product when dealing with mortars and

plasters is a bonding agent called CHRYSO

Cim. CHRYSO

Cim is very effective in

improving the bond, but only if the substrate

has been properly prepared.

CHRYSO

Pigments can also be used

to impart colour to the mortar or plaster.

For uniform colour, the pigment should be

thoroughly mixed with the cement prior to

Chemical solutions company CHRYSO Southern Africa recommends the

use of CHRYSO

Stab rather than water in order to retain workability of

plaster or mortar.

In conjunction with the appropriate protection, typical dosages of

CHRYSO

Stab will produce brick laying mortars with pot lives of eight

to 36 hours.

mixing with the sand. Machine mixing is

preferable, if not essential.

Products from the CHRYSO

Fuge range

can also be added to mortar or plaster to

prevent the ingress of moisture through the

wall. By reacting with calcium hydroxide

produced by the cement, pores within the

plaster or mortar are blocked and this

prevents moisture from penetrating the

surface of the plaster or mortar.

Mechanical mixing is another important

contributor to a good quality mortar or

plaster, as are the right mix proportions.

Where volumes are sufficiently large

enough, many readymix concrete

companies are able to provide sites with

quality controlled retarded mortars and

plasters. This eliminates many of the

problems associated with volume based

site batching.

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