On Demand Course: Performance Engineered Concrete Mixtures

Price: $ 39.00 USD

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Notes/Preview

INSTRUCTIONS: View the recorded webinar. Complete 10-question quiz with a score of 80% or higher to receive a certificate for 0.1 CEU (equivalent to 1.0 PDH).

Continuing Education Credit: 0.1 CEU (1.0 PDH)

Access Period: 30 days

Description

This is a recorded webinar from November 14th, 2017.

New specifications have been developed recently for Performance Engineered Concrete Mixtures (PEMs) for construction or repair of existing pavements and bridge decks. The newly implemented approach incorporates durability performance in addition to early strength characteristics and constructability requirements. Historically, overdesign of compressive strength and usage of extremely high cementitious contents has caused varying degrees of early age cracking due to both thermal and autogenous shrinkage stresses. The new specifications have encouraged optimal usage of cementitious materials, uniform gradation of aggregates, and selection of advanced admixture technology. Performance requirements include restrained shrinkage cracking resistance, linear free shrinkage limits, freeze-thaw resistance, alkali-silica reactivity, and chloride penetration resistance. Field performance has indicated that performance engineered mixtures provide an expected increase in service life of decks and patching repairs.

 

Document Details

Author: D’Ambrosia

Publication Year: 2017

ISBN:

Categories: Admixtures, Cracking, Creep & Shrinkage, Durability

Formats: Online Learning

Table of Contents

Learning Objectives:

1. Identify key characteristics necessary for the successful implementation of performance related specifications for concrete mixtures.

2. Describe new test methods that are available and may be implemented in future specifications and how to properly specify new methods and acceptance criteria.

3. Recognize strategies for successful performance mixture development programs.

4. Summarize concrete performance requirements for shrinkage, freeze-thaw resistance, alkali-silica reactivity, and chloride penetration resistance.

ERRATA INFO

Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the Errata page.

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