Should wait at least 4 days but 7 would be better.
John Singleton-Green has written: 'Limestone concrete' 'Concrete engineering' 'Concrete engineerings'
Green concrete could mean two different things. It could mean that the concrete isn't cured yet, or it could mean that it is supposed to be environmentally friendly.
j
NOT SURE.
the song still waiting is sung by sum 41
No, it must be screwed. - But there are many varieties of excellent concrete board now. -
No, you do not need a green card to drive in France.
NO, you shouldn't do that. There are many fibre/concrete products that are way better.
watch tv
International Superhits and Warning.
Green Concrete is a term given to a concrete that has had extra steps taken in the mix design and placement to insure a sustainable structure and a long life cycle with a low maintenance surface. First step in creating a Green Concrete is to waterproof it ASAP. This Stabilizes the concrete to inhibit the internal chemistry from reacting with an atmosphere to cause surface degradation problems. A product called StableCrete can be used to penetrate into a concrete where it forms a solid inside the gel-pore/capillary system that gives waterproofing protection for a warranted 15 year period! [yes concrete is porous and absorbs water]. A waterproof concrete does not allow contaminates [chlorides being the worst] to enter the matrix and form corrosion cells on the re-inforcing steel [re-bar]. Rust on steel occurs when the pH of the concrete drops below 11.5 thus destroying the passivating protective layer on the steel. (more info www.StableCrete.com). A Stabilized concrete treated with StableCrete, reduces the moisture and oxygen content, two of the four ingredients needed for corrosion to commence. Concrete will last longer and will not need a repair or replacement if protected from the start. This makes it "Green"
Yes, you can put grass over concrete to create a green space in a paved area by using artificial turf or installing a grass grid system that allows grass to grow through the concrete.