A comparative study on the carbon dioxide emissions of ready-mix concrete and precast concrete construction

Date of Publication

2016

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Civil Engineering with Spec in Construction Technology & Management

Subject Categories

Construction Engineering and Management

College

Gokongwei College of Engineering

Department/Unit

Civil Engineering

Thesis Adviser

Chery Lyne C. Roxas

Defense Panel Chair

Jason Maximino C. Ongpeng

Defense Panel Member

Richard De Jesus
Ronaldo S. Gallardo

Abstract/Summary

The construction industry is one of the highest producers of greenhouse gases that cause global warming. Carbon dioxide (CO2) is the primary greenhouse gas. The aim of the study is to compare the environmental impact of concreting methods by analyzing the CO2, emissions during manufacturing, transportation, and casting/installation of concrete. The construction methods compared were ready-mix concrete (RMC) and precast concrete construction(PCC). The group located active concrete plants and ongoing high-rise construction projects for each method. Observation and inspection on-site were conducted in order to obtain actual processes and to determine the parameters needed, such as volume of concrete produced, duration of each activity, and the specifications of each machine. Lastly , the group utilized GREET.net and a research-based method in order to quantify CO2 emission in kilograms per volume of concrete produced per process. For the result of the RMC construction, the total average of CO2 emission is 18.578 kg-CO2/m3 and 17.287 kg-CO2/m3 for GREET.net and research-based method respectively. The percent difference is around 7.2%. In PCC construction, the total average of GREET.net and research based method were 17.437 kg-CO2/m3 and 17.542 kg-CO2/M3 respectively with a 0.6% percent difference. Averaging the results in all three plants, for both estimation methods, it was RMC that emits lesser amount of CO2, emission.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU18924

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

xii, 151 leaves, illustrations (some color), 30 cm.

Keywords

Carbon dioxide mitigation; Concrete--Carbon content

Embargo Period

5-10-2021

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