Скачать или смотреть Realizing CO2 Savings Through In-Transit Admix Management

Presented By: Jon Deering, Core Ready Mix
Description: High-range water reducers (HRWRs) have been an enabler of lower cement contents since their introduction late last century. There now exists integrated IoT and hardware systems that allow automatic admixture additions on concrete mixer trucks during transit from batching to pouring at the job site. These systems are programmed to add admixture as slump loss occurs. This method results in two benefits: 1) a delayed addition of admixture, which has been shown to result in a more effective dosage and 2) the admixture is only added when slump loss occurs. This second point means no unnecessary admixture is added during delivery of the concrete. Typically, HRWR’s are used in commercial and high-performance applications (e.g. office buildings, bridges). What will be discussed in this presentation is the adoption of the in-transit admixture management system to demonstrate increased admixture efficiency for residential concrete. Furthermore, the use of admixture in residential applications has allowed a redesigned mixture proportion - leading to significant amount of cement reduction and associated CO2 at the same specified strength.