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Chryso Quad brings marginal fine aggregate into mix design realm

Sources: Chryso Group, Issy-les-Moulineaux, France; CP staff

The parent company of Texas-based Chryso Inc. has announced a range of admixture products and lab support services enabling concrete producers the option of using sands with low or high fines content, swelling clay deposits, or less than optimal shape. 

Read more: Chryso Quad brings marginal fine aggregate into mix design realm

Marcotte acquires Quadra Control software division

Sources: Marcotte Systems Ltd., Montreal; CP staff

Marcotte Systems has added to its concrete batch plant and raw material production controls or information technology offerings the software division of Quadra Control & Weigh Systems Ltd, based in Surrey, British Columbia.

Read more: Marcotte acquires Quadra Control software division

Dust, heat, material handling, noise top construction crew health hazards

Source: American Industrial Hygiene Association, Falls Church, Va.

A guidance booklet from the American Industrial Hygiene Association (AIHA) Construction Committee highlights the significant impact that air contaminants, high temperatures, manual material handling and noise have on workers and their employers, along with practical steps that can be taken to control exposure. 

Read more: Dust, heat, material handling, noise top construction crew health hazards

Bullish hardscape product growth forecast bears on solid ground

Sources: Freedonia Group, Cleveland; CP staff

In a new report, market researcher Freedonia Group projects hardscape unit demand increasing 5.4 percent annually through 2023, driven especially by consumer interest in higher value offerings like concrete plank pavers that resemble wood, along with permeable interlocking concrete, natural stone or porcelain pavers.

Read more: Bullish hardscape product growth forecast bears on solid ground

Researchers track graphene admixtures’ decade-long emergence

Sources: IDTechEX Research, Boston; CP staff

A new article, “Graphene: The evolving application landscape,” projects early prototype and semi-commercial prototype phases over the next 8-10 years for concrete, cement and asphalt additives bearing graphene or carbon nanotubes. That observation is consistent with lab or field demonstrations by a handful of admixture developers eyeing performance properties attainable in finished concrete through dosages of nano-scale cylinders with wall thicknesses the diameter of a single carbon atom.

Read more: Researchers track graphene admixtures’ decade-long emergence