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The use of crushed recycled concrete as an alternative concrete aggregate

Ratcliffe, Shane (2016). The use of crushed recycled concrete as an alternative concrete aggregate. Bachelor of Engineering (4th Year Project) Thesis, Charles Darwin University.

Document type: Thesis
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Author Ratcliffe, Shane
Title The use of crushed recycled concrete as an alternative concrete aggregate
Institution Charles Darwin University
Publication Date 2016-05
Thesis Type Bachelor of Engineering (4th Year Project)
Supervisor Wolff, R
Subjects ENGINEERING
0905 - Civil Engineering
Abstract The strength, cost and emissions of recycled concrete aggregate were compared to natural aggregate. Multiple meetings and site visits were carried out with the local suppliers in Darwin. R.U.B Group were used for recycled concrete aggregate while HB Group were used for natural aggregates. A cost analysis showed it was cheaper to use recycled concrete aggregate. Concrete mixes were made with both types of aggregate. Unsaturated recycled concrete aggregate was much weaker and had a greater variability in strength compared to natural aggregate. However, provided it was in a saturated surface dry state, recycled concrete aggregate could achieve similar strengths and variability to natural aggregate. The CO2 emissions from the production of recycled concrete aggregate were found to be greater than those arising from the production of natural aggregate but this was dependent on the scope of calculations.
Keyword recycled concrete aggregate
natural aggregate
concrete
concrete costs
emissions
concrete strength
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Created: Tue, 16 Aug 2016, 14:23:28 CST by Jessie Ng