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1、A framework for specifying novel concrete technologies1A framework for specifying novel concrete technologiesCase studiesContactForewordMethodologyAppendixA framework for specifying novel concrete technologies1Novel concrete technologies have become increasingly popular as an effective method for re

2、ducing the greenhouse gas emissions associated with concrete construction.Recently,many novel technologies have emerged that promise significant carbon savings.However,implementing these technologies requires change from the business-as-usual approach,and the rapidly changing landscape increases the

3、 complexity of specifying novel products.This guidance document uses past project experience with novel concrete technologies to show how they can be implemented on projects,setting forth a basic framework for designers,contractors,and owners.ForewordContactCase studiesMethodologyForewordAppendixA f

4、ramework for specifying novel concrete technologies2MethodologyIn this section:Why do we need this framework?Covered concrete technologiesIdentifying novel concrete technologiesUnderstanding and mitigating riskSteps to de-risk novel technologiesLimitations of this frameworkCase studiesContactForewor

5、dMethodologyAppendixA framework for specifying novel concrete technologies3In the early 1900s,an alternative type of cement known as high alumina cement(HAC)was developed.It gained popularity in the UK during the 1950s due to its rapid strength development properties.However,following several high-p

6、rofile structural failures in the 1970s,it was discovered that HAC naturally undergoes a chemical reaction called“conversion.”During this reaction,the solid fraction of the reacted cement reduces in volume,increasing porosity and decreasing material strength.Exposure to water and high temperatures c