Sources: University of California, Berkeley; CP staff
Using the Advanced Light Source at Lawrence Berkeley National Laboratory and core samples from an ancient breakwater near Naples, Italy, a UC Berkeley research team has examined Roman concrete’s fine-scale structure and extraordinarily stable binding compound, calcium-aluminum-silicate hydrate.
Source: National Ready Mixed Concrete Association, Silver Spring, Md.
NRMCA is accepting applications through July 1 for the 2013 Mixer Driver Championship in Las Vegas. The September 22-23 competition is open to NRMCA producer-member drivers, typically those who have won state/regional association mixer truck roadeo or similar intra-company events.
Source: ASTM International, West Conshohocken, Pa.
A proposed standard, WK37029, Test Method for Measurement of Mass Loss Versus Time for One-Dimensional Drying of Saturated Concretes, will enable ready mixed producers to characterize the drying behavior of new and existing concrete mixture proportions.
Source: Federal Alliance for Safe Homes (FLASH), Tallahassee, Fla.
An organization backed by Portland Cement Association, Home Depot, International Code Council and leading residential property underwriters, FLASH convened a June 6 briefing to address myths surfacing in the wake of last month’s outbreak of tornadoes in Oklahoma and Texas.