To make less-brittle concretes, scientists mix in fibers, just as brickmakers used to mix in pieces of straw.
At the University of Texas in Austin, David Fowler and his colleagues are studying concretes bound together by polymers instead of portland cements.
Danish scientists are already studying dense concretes with a strength of 30,000 psi.
Within reach, they say, are soaring concrete towers that tickle mile-high clouds or gigantic steel frames from which a city's walkways, roads and buildings hang.
k, the President of THBB and ERMCO Board and ERMCO President's Committee Member, said this congress will be of huge importance for Turkey and especially for the ready-mixed concrete industry and continued as follows: " We believe that all the important representatives of the Euro pean and w orld wide ready-mixed concrete industry will participate in our event.
The Congress will be structured in four sessions: sustainability of concrete solutions; contribution of concrete to society; advances in concrete production and use; and marketing and management.
More research is needed to examine the effect of RCA moisture condition on the properties of fresh and hardened concretes.
2011) reported that the difference in the splitting tensile strength between NCA and RCA concretes is high when they are cured in the outer environment.
A contractor's decision to pour slumpy concrete
at Donald Trump's Riverside South development, despite requests not to from the-engineer and construction manager, could cost the company more than a million dollars to rectify and would not be covered by insurance, attorneys say.
The Arnhem researchers also observed that for the concretes
they studied, radon emissions rose as the humidity in the environment increased -- to a maximum of 75 percent relative humidity.
In terms of growth, refractory cements, mortars and concretes
is expected to be the fastest-growing category in the global concrete
and cement market over the forecast period, with a CAGR of 9.
2 Latvian concrete
and cement market size by value by category 5.