New ASTM C09 guide gauges mix performance, material compatibility

Sources: ASTM International, West Conshohocken, Pa.; CP staff

ASTM Subcommittee C09.48 on Performance of Cementitious Materials and Admixture Combinations’ working document, WK40615 Guide for Comparing Performance of Concrete Materials Using Mortar Mixtures, standardizes longstanding material-performance investigation protocol.

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Rotary batch mixer

The 700-THX-50-ARI Rotary Batch Mixer blends abrasive materials in one to three minutes with minimized wear or product degradation. With useable batch capacity of 50 cu. ft. or 4,000 lbs., it features abrasion-resistant steel material contact surfaces, internal mixing flights bearing easy-to-replace wear plates, and radial seals for dust-tight operation. The mixer achieves uniformity with equal efficiency from 100 percent to 15 percent of rated capacity, regardless of disparities in the bulk densities, particle sizes or flow characteristics of batch ingredients.

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Cat applies iron competencies to plant- and site-grade utility vehicles


A manufacturing and supply agreement with Textron Specialized Vehicle positions Caterpillar Inc. for a mid-2018 launch of its first-ever utility vehicles, starting with the Cat CUV82 and CUV102D models running three-cylinder gas and diesel engines, respectively. Each model features rugged steel cargo bed; 1,000-lb. total rear cargo and 2,000-lb. towing capacities; plus smooth acceleration, clear sightlines and engine braking capability.

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Intelligently designed curing systems

Besser Co. engineers curing systems to deliver accurate temperature, humidity and cycle control for chambers, kilns or plant bays, plus air control and insulation to provide circulation and energy savings. The company employs proprietary simulation software to design new systems for maximum efficiency and dependability; the software also evaluates current systems, locating and correcting any deficiencies.

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