NRMCA e-news

 

Following is a summary of activity which took place at the ASTM meeting in Philadelphia in June on Committees C09 on Concrete, C01 on Cement and E05 on Fire attended by NRMCA staff.

C09.20 Aggregates - A revision was approved to specification C33 on normal-weight aggregates for concrete, to simplify the limits for deleterious materials for coarse aggregate by establishing durability class designations based on potential exposure of concrete and eliminating that based on U.S. weathering zones. The committee will consider as new business if soundness requirements should be stated for aggregates used in wetting and drying applications and a suggestion to use the micro-Deval method as an alternate to soundness test (C88).

 

The NRMCA’s Annual Safety Award acknowledges the significant contribution that safety work practices give to the growth and success of individual companies and the ready mixed concrete industry as a whole. The award is presented to an individual or company whose actions represent the very highest in the advancement of safety in the ready mixed concrete industry. The award program is generously sponsored by the Truck Mixer Manufacturers Bureau (TMMB).

 

In May and early June, NRMCA verified system-level Environmental Product Declarations covering 28 ready mixed concrete plants and one cement plant for the following producers: 

• Raptor Materials, NRMCA Producer member - This EPD reports the impact for two ready mixed concrete mixes from a plant in Greeley, CO, and three mixes from a plant in Erie, CO. This EPD was developed in consultation with Sustainable Solutions Corporation and verified by Industrial Ecology Consultants. NRMCA EPD number 20143.