A Comparative Analysis of Prescriptive and
	Name: A Comparative Analysis of Prescriptive and File: Yurdakul Paper 5-14-14 2.pdf Size(MB): 0.19MB Extension: PDF Event: 2014 ICSC - BOSTON Speaker Name: Yurdakul, Ezgi Managed by: sdickens Date Uploaded: June 6, 2014; 12:00 pm Download Count: 1030 Downloads This Month: 1030 Your Geographic Information: Country: United States State/Region: City: Zip Code: Area Code: 0 Your IP: 54.211.135.32 Description: Paper - With the recent advancements in concrete technology, design and production of “green concrete” has become desirable. Although, the production of structures that are entirely sustainable is still challenging, industry has shown progress by motivating alternative solutions to conventional concrete such as using recycled aggregates, binary and ternary mixes with high level of supplementary cementitious materials, and alternative binders with different chemistry causing lower carbon footprint than portland cement. However, mix proportioning guidelines for performance-based specifications have fallen behind these advancements. Despite the well known relation between cement production and carbon dioxide emission, prescriptive-based specifications which set minimum cement content requirement are still commonly used, thereby dramatically impacting sustainability. This paper presents the effect of specifications on sustainability by comparing the corresponding carbon footprint of cementitious materials required according to the prescriptive and performance-based specifications.