I wet casted a 5 cm thick slab using Glenium 51 and when I flipped it the face of the slab was coloured dark grey but the vertical sides where normally coloured light grey concrete. Has anybody experienced somethong similar?

Views: 198

Reply to This

Replies to This Discussion

Melamine and yes I left it for 2 weeks for sure, because I went on a trip. 

Could it be seggregation? do you have any aggregates that would give you dark gray color when they settle?



Versus said:

Could it be seggregation? do you have any aggregates that would give you dark gray color when they settle?

No no, it is regular sand and gravel, all white

How clean was your form? Even a little dust laying in the form can change white dramatically.

Any pictures?

The dark grey is the "normal" color - the light grey is the unhydrated surface.

Reply to Discussion

RSS

Sponsor's Training

Concrete Countertop Mix Recipes

Featured Product

    Featured Product 

Fishstone's Super-SIX-Admix™ is a proprietary blend of SIX different admixtures designed to achieve pinhole free, dense and strong concrete that will free flow in precast molds.  Super SIX makes it easy to produce Ultra high performance concrete (UHPC), also known as Engineered Concrete Composition (ECC) and Reactive Powder Concrete (RPC).  Super-SIX™  is a non-hazardous material utilizing the newest and most advanced technologies.

© 2018   Created by Tom Fischer.   Powered by

Badges  |  Report an Issue  |  Terms of Service