Recycled aggregate concrete thesis pdf

Recycled concrete as aggregate for structural concrete. Review article assessment of recycled aggregate concrete. Pdf use of recycled concrete aggregate in concrete. Gaza strip is a small closed coastal area 365 km2 and a densely populated. It also compares these properties with natural aggregates. The compressive strength of recycled aggregate concrete with 60 % recycled aggregate, is about 76 % of natural aggregate concrete. Mechanical properties of concrete using recycled plastic. Recycled concrete aggregate a viable aggregate source. Basic changes in all aggregate properties were determined and their effects on concreting work were discussed at length. Pdf recycled aggregate concrete as structural material.

The absorption rate refers to how quickly a sample of aggregate absorbs water. This thesis focuses on recycling of concrete waste as an aggregate in structural concrete in flexure and punching shear. I certify that this thesis satisfies the requirements as a thesis for the degree of master of science in. Pdf reusing recycled aggregates in structural concrete. Sieve analysis results of recycled aggregate with maximum size of 23 mm17. Similarly the properties of recycled aggregate concrete were also determined and explained here.

In addition, the use of rca leads to a possible solution to the environmental problem caused by concrete waste and reduces the negative environmental impact of the aggregate. Thesis, chonbuk national university, jeonju, korea, 2007. Pdf the use of recycled aggregates in concrete opens a whole new range of possibilities in the reuse of materials in the building industry. A study on the properties of recycled aggregate concrete. The use of recycled concrete aggregate rca in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry, as it reduces the demand for. Concrete made with such recycled concrete aggregate is called recycled aggregate concrete rac. Properties of concretes produced with recycled concrete aggregates. Recycled concrete aggregate rca is generally produced by twostage crushing of demolished concrete, and screening and removal of contaminants such as reinforcement, paper, wood, plastics and gypsum. I herby declare that this thesis together with work contained herein was produced. Abstractthe use of recycled concrete aggregate rca in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry, as it reduces the demand for virgin aggregate. I hereby declare that i am the sole author of this thesis.

I understand that my thesis may be made electronically available to the public. Recycled concrete aggregate a viable aggregate source for concrete pavements by james trevor smith a thesis presented to the university of waterloo in fulfillment of the thesis requirement for the degree of doctor of philosophy in civil engineering waterloo, ontario, canada, 2009 james trevor smith 2009. From the literature, it is known that usage of recycled concrete as aggregates has. Therefore, in terms of applying recycled aggregate for concrete, there have been. Recycled aggregate concrete as structural material. Experimental study of compressive strength of recycled. Acknowledgements the work presented in this paper is. Ontario ministry of transportations manual for condition rating of rigid pavements. In particular, this thesis examines the results of those studies in regard to the compressive strength of concrete blocks made with ra, hereafter referred to as recycled aggregate concrete, or simply, rac.