Buildtec Solution

Main uses

When added to the mortar Cebex 112 entrains a controlled quantity of air which imparts greater workability and cohesion to the mortar, and increases its durability once set. Use of Cebex 112 reduces thermal movement and drying shrinkage in the cured mortar.

Advantages

 

• Eliminates use of lime in masonry applications. Saves storage space and failures due to unsound lime.
• Improve moisture retention and bond strengths.
• Make mortar frost resistant.
• Highly economical. Maximum yield of up to 20%.
• Improves harsh sands.
• Can be used in coloured mortars.

Standard compliance:-

Cebex 112 complies with BS 4887, Mortar Plasticisers. It conforms with the recommendations of BRE Digest 160.
Description:-

Cebex 112 is supplied as a light brown coloured liquid which mixes readily with water in any proportions. It is based on polymerised resins and is free from calcium chloride and similar salts. 
When added to the mortar Cebex 112 entrains a controlled quantity of air which imparts greater workability and cohesion to the mortar, and increases its durability once set. Use of Cebex 112 reduces thermal movement and drying shrinkage in the cured mortar.

Properties:-

Calcium chloride content

Nil. Cebex 112 can be used in conjunction with Conplast NC chloride-free accelerator (see separate data sheet) to obtain acceleration of set during winter working. Conplast NC should be added first, followed by the Cebex 112.

Compatibility With Other Admixtures:-

Cebex 112 should not be mixed with any admixtures unless advised by our technical department.

Compatibility With Cements:-

Can be used with any type of Portland, super sulphate or blast furnace cement. For advice on use with other types consult our technical department. 

Setting time:-

There is no significant effect on the setting time of mortars.

Plasticising action:-

Cebex 112 entrains a controlled amount of microscopic air bubbles which increase cohesion and provide lubrication to the sand particles in the mix, thereby imparting improved workability to the mortar. The air bubbles hold the cement / water matrix at the contact surfaces which results in improved bond strengths. 

Frost resistance:-

The air entrainment appreciably increases the frost resistance of the fully cured mortar. The use of an air entraining plasticiser also improves the frost resistance of fresh mortar and is recommended in BRE Digest 160. 

Precautions:-

Health and safety

Cebex 112 is mildly alkaline. Avoid unnecessary contact with the skin. Accidental splashes to eyes should be washed immediately with plenty of water and medical treatment sought. 

Instructions for use mixing:-

Cebex 112 may be added directly to the sand/cement/water mix or, where more convenient, may be pre-mixed with the gauging water. Mechanical mixing is to be preferred but thorough manual mixing gives acceptable results. 

Dosage:-

Cebex 112 drums

Direct to the mix 0.15 - 0.30 litres of Cebex 112 for each 50 kg of cement. To the gauging water 0.75 - 1.50 litres of Cebex 112 to 200 litres of water. The nature of the sand will determine the optimum amount necessary; a plastering grade will require less and a coarse washed sand more. Site trials are recommended to determine the practical dosage in each case. Average dosage in 1:6 mix, 4.5 litres Cebex 112 is sufficient for 5000 bricks. 

Other Details:-

• Improved moisture and bond strength
• Fastness Drying Advantage
• High Durability