Sika colloidal silica agent arms contractors to control slab destiny

Sources: Sika Corp.,Lyndhurst, N.J.; CP staff Nanotechnology driving deployment of particles far smaller than those typical of cementitious materials augments the latest addition to Sika’s line of concrete admixtures for improving slab on grade performance. A colloidal silica topical agent, SikaCem-190 Concrete Control is spray applied during floating or troweling to maintain adequate moisture and reduce premature set risk. The…

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ACI, ASCC formalize Decorative Concrete Committee, certifications

Sources: American Concrete Institute, Farmington Hills, Mich.; CP staff

The American Concrete Institute and American Society of Concrete Contractors have designated ACI Committee 310, Decorative Concrete, a joint ACI-ASCC committee, tasked with compiling and releasing information on the application of artistic finishes of cast-in-place concrete; avoiding duplication of efforts; and, speeding document development.

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Concrete Decor Show: September in San Diego

Source: ProTrade Publications, Eugene, Ore.; CP staff

Registration is open for the seventh annual Concrete Decor Show, September 25-29 at the Town and Country Resort & Convention Center in San Diego. The event will feature decorative concrete workshops and seminars by leading industry authorities, plus a September 27-29 trade show with indoor or outdoor displays and demonstrations.

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Smoothness/roughness measurement standard advances decorative concrete

Source: ASTM International, West Conshohocken, Pa.

The proposed WK49335, Test Method for Concrete Micro Surface Texture, describes the use of a contact stylus instrument, or profilometer, and reliable data indexes to measure and quantify a slab or structure’s smoothness/roughness value. Members of ASTM Subcommittee E06.21 on Serviceability envision fast and precise surface inspection on a wide range of cement-based building materials, especially concrete flooring and decorative surfaces.

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