Sources: Purebase Corp., Ione, Calif.; CP staff The Sustainable Concrete Lab-to-Slab Initiative under the University of California, Davis Pavement Research Center will see testing of three slabs bearing 2.5 yd. or more of concrete mixes designed with novel binders, including a supplementary cementitious blend from metakaolin producer Purebase. Through prequalification testing, QA/QC, mid-term monitoring, plus environmental, constructability and life cycle…
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Purebase ramps up calciner for commercial scale metakaolin output
Purebase Corp. anticipates a Q3 start up for a calciner engineered to process reactive, concrete-grade metakaolin from an Ione, Calif. kaolin clay deposit. An ASTM C618-designated natural pozzolan, metakaolin presents a reduced carbon alternative to portland cement, owing to the lower calcination phase heat, < 700°C versus 1,400°C+, required to drive off CO2 from calcium and other minerals. It can…
Read MoreSCM developer Purebase eyes California market in major-producer partnership
Natural resource-minded Purebase Corp. has entered a strategic partnership with a major integrated materials producer to commercialize an eco-friendly, supplementary cementitious material especially suiting the California market. The partners will test a kaolin clay-based SCM processed at Purebase’s pilot plant in Ione, Calif., where efforts to date have been concentrated on augmenting concrete mix designs calling for Type II or…
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