r/science • u/mvea Professor | Medicine • Nov 03 '19

Chemistry Scientists replaced 40 percent of cement with rice husk cinder, limestone crushing waste, and silica sand, giving concrete a rubber-like quality, six to nine times more crack-resistant than regular concrete. It self-seals, replaces cement with plentiful waste products, and should be cheaper to use.

https://newatlas.com/materials/rubbery-crack-resistant-cement/
97.2k Upvotes

95% Upvoted

1.6k comments sorted by

View all comments

Show parent comments

0

u/runfayfun Nov 03 '19

Nope. Do I need to be in order to know that warranties range in duration and, for instance, in some countries in Europe, may exceed 25 years, while multiple projects in the Midwest have been bid to 15 years?

1

u/Numquamsine Nov 04 '19

Is this a like comparison? I'd love to know more if it is.

1

u/runfayfun Nov 04 '19

Sure, there are several publications by state DOTs doing analysis of warranty programs that have previously been done in the states, notably in Kansas, Wisconsin, and Minnesota, some in Michigan. They’ve run up to 15 years IIRC. There are some texts and papers that cover Europe. Notably, Spain and the UK have done contracts with warranties over 25 years.

I’d have to get on my PC to find them, but I recall the search being pretty straight forward.