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NRMCA Introduces Two New Topics in Technology in Practice Series

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NRMCA's Technology in Practice (TIP) series topics are developed as brief technical educational discussions for ready mixed concrete industry personnel. The content is developed by the Research Engineering and Standards (RES) Committee and is written in the popular "What?, Why? & How?" format. Two new topics are now available:

TIP 14 – Time of Setting of Concrete Mixtures – discusses the factors that impact the setting characteristics of concrete and outlines the procedure and determination of the time of setting by ASTM C403, Time of Setting of Concrete Mixtures by Penetration Resistance.

TIP 15 – Estimating Concrete Strength using Maturity – discusses a process for estimating in-place strength of concrete using one of the methods outlined in ASTM C1074, Practice for Estimating Concrete Strength by the Maturity Method. This TIP discusses developing the strength-maturity relationship, validation of the relationship and estimating in-place strength for scheduling construction activities.

The TIPs are available in multiple copies for each topic and in collated sets with all 15 topics. These are valuable for training quality control/quality assurance personnel and customers of ready mixed concrete companies.

The RES Committee continues to work on additional TIP topics. Recommendations for future topics can be sent to Karthik Obla at or or Colin Lobo at Click here to preview the content of each topic and to order TIPs.

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Fritz-Pak Corporation
Putzmeister America, Inc.
Xypex Chemical Corp
McNeilus Truck & Manufacturing, Inc.
True Dispatch
Lehigh Hanson
Naylor Association Solutions
900 Spring Street
Silver Spring, MD, 20910
Phone: 301-587-1400 Toll Free: 888-84 NRMCA (846-7622)