Abstract
AbstractConstruction and Demolition Waste (C&DW) management has become a burden locally and globally. Thinking towards consumption of large C&DW quantities, particularly Recycled Concrete Aggregates (RCA), in road construction is the main derive of this study. Natural aggregates, used as a control material and designated G5 (i.e. South African road pavement material class), is compared to RCA. A series of physical and chemical tests were conducted to classify the RCA and assess the material’s appropriateness for pavement structure as unbound base or/and subbase layers. Additional tests were carried out by adding varying amounts of cement (i.e. 2%, 2.5% and 3%) to evaluate the pertinence of RCA to cement-treated materials often prescribed for pavement layers. The result indicates great potential concerning the beneficial reuse of RCA in the pavement structure.
Funder
University of KwaZulu-Natal
Publisher
Springer Science and Business Media LLC
Reference36 articles.
1. J.Hao, J., Yang, M. J., Hills, T., & Huang (2007). A simulation model using system dynamic method for construction and demolition waste management in Hong Kong. Construction Innovation, 7(1), 7–21. https://doi.org/10.1108/14714170710721269
2. Shen, L. Y., Tam Vivian, V. W., Tam, C. M., & Drew, D. (2003). Mapping approach for examining waste management on construction sites. American Society of Civil Engineers (ASCE). Journal of Construction Engineering and Management, 130(4), 472–481. https://doi.org/10.1061/(ASCE)0733-9364(2004)130:4(472)
3. Fatta, D., Papadopoulos, A., Avramikos, E., Sgourou, E., Moustakas, K., Kourmoussis, F., Mentzis, A., & Loizidou, M. (2003). Generation and management of construction and demolition waste in Greece - An existing challenge. Resources. Elsiver Journal of Conservation and Recycling, 40(1), 81–91. https://doi.org/10.1016/S0921-3449(03)00035-1
4. Gauteng Provincial Government, Building and Demolition Waste Guidelines (2009). Department of Agriculture Conservation and Environment, South Africa, Pretoria 1–63.
5. Yuan, H. (2011). A dynamic model for assessing the effectiveness of construction and demolition waste management, Doctoral dissertation, The Hong Kong Polytechnic University.