Landscape Contractor / Design Build Maintain

JUL 2018

LC/DBM provides landscape contractors with Educational, Imaginative and Practical information about their business, their employees, their machines and their projects.

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36 LC DBM Marketplace Decorative Water Features / PMBR I n f o r m a t i o n R e q u e s t # 1 8 2 I n f o r m a t i o n R e q u e s t # 2 2 9 I n f o r m a t i o n R e q u e s t # 1 3 7 I n f o r m a t i o n R e q u e s t # 1 0 7 Finding Better Materials for 3D Printing Greener Concrete with More Benefits New Concrete and Masonry Resource Available Looking to resolve the problems posed by using concrete-based materials in 3D printing, specifically that it can clog ma - chines, the U.S. Army Corps of Engineers has developed and patented a material made from a form of silica, and sand, clay and fly ash, along with a liquid admixture that improves its ability to flow, and a binding agent that does the same as well as lessens the set-time. This new material is reported to potentially speed up construc - tion of items such as walls and bridges. With CarbonCure's new system for mixing concrete, the wet material is injected with a factory's captured CO2 waste product, which reacts with the mix and converts to a different mineral. This cannot only reduce the earth's carbon footprint, it is reported to im - prove the compressive strength of concrete, allowing manufactur- ers to use less cement in the mix: an- other way for carbon reduction and a means of evening out the cost for the CO2 capture. The concrete is cur - rently being used in a development in Atlanta scheduled to be complet - ed in 2019. www.carboncure.com The 2018 ACI Collection of Concrete Codes, Specifications, and Practices is now being offered through the American Concrete Institute, who bills the collection as "the most comprehensive and largest single source of information on concrete de - sign, construction, and materials." It contains more than 200 practices for concrete and masonry work - including guides and reports – and almost 50 codes and specifi - cations. It can be purchased as an 8-volume set of books or in digital form. Online subscriptions are also available for 1, 5, 10 or 20 users. https://tinyurl.com/ybfyeta7

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