Скачать или смотреть Workability of Concrete: Can There be Too Much of a Good Thing?

Presented By: Jacob Borgerson, Wiss, Janney, Elstner Associates, Inc.
Description: The workability of concrete is critical for the successful placement and finishing of concrete. In some instances, constructors and designers want highly mobile concrete that can spread throughout the formwork without the use of internal vibration for consolidation. These type of concrete mixtures typically utilize conventional concrete constituents, but adjusts the proportions to achieve a highly flowable and non-segregating concrete. This presentation will discuss the factors that influence the workability of concrete and potential concerns to consider when deciding to utilize highly mobile concrete. In addition, attendees will be introduced to various quality procedures that can be implemented during the concrete placement and when their use is appropriate. Case studies will be used to illustrate the concepts presented. This presentation will benefit engineers, architects, testing laboratories, contractors, ready-mix suppliers, owners, and anyone who has sat in a job site trailer to discuss the workability of concrete.