About the Cement Paste

What is cement paste?

hayy .. the cement powder + Water + sand

search for "properties of cement".

Last I checked, Cement + Water + Aggregate (sand or gravel or both) = CONCRETE! Most important uses, hmmm, roads, buildings, bridges, etc, etc......Problems, doesn't last forever, salt attacks it, freeze / thaw cycles play hell with it, get it too wet while pouring, it comes apart, cracks.

If your talking like a grout there are many applications. Like pool lining, erosion control, fill under pipes etc. Its a low strength product and can't be used for heavy loads. Pavement, load bearing pads etc. Cracking can be an issue if mixture is wrong, dried to quickly, used in the wrong application, etc.

If you google sovereign chemicals , a UK company , you will find info on adding SBR to mortar , screeds , render etc . SBR is widely available from various manufacturers . It is a very superior form of PVA . I used to do tanking ( waterproofing of below ground level walls etc ) and I can vouch for its effectiveness in preventing cracking , adhesion to poor surfaces , workability , strength , waterproofing qualities etc . Main thing is , when you make your mix , allow loads of time in the mixer , and DO NOT make mix too wet . It will seem to become wetter as it mixes , without the need for much water , if you give it time . Best thing is , get someone experienced to show you a couple of times .

Not familiar with the acronyms SBR or PVA, but it sounds like a oil we spray on concrete below ground to help it become water resistant.

It's called concrete. Get a handyman book to learn how to use it.

Give the bloke a chance . Cement , sand and water is not concrete . It might be mortar , screed , render or grout , but not concrete , which needs additional , larger aggregate . Just because he doesn't know the correct terms for the stuff don't mean you can take the p... out of him .

PVA is polyvinylacetate , I think . SBR is styrene-butadeine rubber . The latter is the stuff to prevent cracking etc.

GA Thanks for the info on the acronyms been out of the concrete making business for a while.

Polyvinyl alcoxy, or acetate, is water soluble and is commonly found in wood glues.

It might act as a binder or adhesion promoter.

SBR is a common O-ring material. Not sure why it would be added to either cement or concrete.

dear member

We are using cement paste for following use in my knowledge.

1-Applying to surfaces before plastering

2-Pure cement paste without sand for water proofing and niru coat or final coat in water tanks.

3-to fixed glazed tiles in bath rooms and toilets.

4-Immediate repair of concrete.

5-Applying to joints before new concrete pouring is began.

6-floor tile fixing.

7-Cement or IPS flooring.

list is endless anybody can add some more use.

Definitely , for most of those uses , SBR additive will help enormously . Mix 50:50 with water , then add cement till its like yoghurt ( creamy yoghurt ) . We usually brush it on with a stiffish brush . It does go off fast , especially in hot weather, so better making a little bit at a time till you get used to it . Then , do the next step of whatever you're doing while it is still tacky . If it goes dry before you get the next step done , you have to put some fresh on .

What additives have you been putting in up till now ?