A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Investigation on the Feasibility of Using Construction Demolition Waste Materials for Subbase Layer in Flexible Pavement
The scarcity of natural resources such as aggregates due to their continuous use in construction activities has led to the use of alternative materials in their place. The reuse of construction wastes is one such option especially as an alternative to coarse aggregates in granular subbase layer. At present, these wastes are simply dumped on open land without any further use. As a step toward sustainable construction techniques, the present experimental investigation explores the feasibility of reusing building construction and demolition (CD) wastes consisting of concrete aggregate waste (CAW), concrete hollow block waste (CHBW), and clay brick waste (CBW) in the subbase layer of pavements. Separate mixes were prepared using CAW, CHBW, and CBW in the proportion 100:0:0 (S1), 80:10:10 (S2), and 60:20:20 (S3) and compared with control mix having only virgin aggregates to evaluate their usability as GSB layer in the pavement. The compaction results showed that S1 mix had higher MDD and OMC compared to control mix while the soaked CBR value of all the three mixes with CD waste was higher than that of control mix. Further, the MDD and the CBR value decreased with increase in CBW in the mix. The permeability values of CD waste mixes also showed comparable results with the control mix especially for S1. This study infers that S1 mix having 100% CAW is more suitable GSB material compared to S2 and S3 mixes which have CBW. Hence, care must be taken to avoid CBW in GSB layer prepared with CD waste.
Experimental Investigation on the Feasibility of Using Construction Demolition Waste Materials for Subbase Layer in Flexible Pavement
The scarcity of natural resources such as aggregates due to their continuous use in construction activities has led to the use of alternative materials in their place. The reuse of construction wastes is one such option especially as an alternative to coarse aggregates in granular subbase layer. At present, these wastes are simply dumped on open land without any further use. As a step toward sustainable construction techniques, the present experimental investigation explores the feasibility of reusing building construction and demolition (CD) wastes consisting of concrete aggregate waste (CAW), concrete hollow block waste (CHBW), and clay brick waste (CBW) in the subbase layer of pavements. Separate mixes were prepared using CAW, CHBW, and CBW in the proportion 100:0:0 (S1), 80:10:10 (S2), and 60:20:20 (S3) and compared with control mix having only virgin aggregates to evaluate their usability as GSB layer in the pavement. The compaction results showed that S1 mix had higher MDD and OMC compared to control mix while the soaked CBR value of all the three mixes with CD waste was higher than that of control mix. Further, the MDD and the CBR value decreased with increase in CBW in the mix. The permeability values of CD waste mixes also showed comparable results with the control mix especially for S1. This study infers that S1 mix having 100% CAW is more suitable GSB material compared to S2 and S3 mixes which have CBW. Hence, care must be taken to avoid CBW in GSB layer prepared with CD waste.
Experimental Investigation on the Feasibility of Using Construction Demolition Waste Materials for Subbase Layer in Flexible Pavement
Lecture Notes in Civil Engineering
Singh, Dharamveer (editor) / Vanajakshi, Lelitha (editor) / Verma, Ashish (editor) / Das, Animesh (editor) / Chandra Prathap, R. (author) / Salini, U. (author)
Proceedings of the Fifth International Conference of Transportation Research Group of India ; Chapter: 13 ; 193-200
2022-05-14
8 pages
Article/Chapter (Book)
Electronic Resource
English
Stabilization of subbase layer materials with waste pumice in flexible pavement
| British Library Online Contents | 2008
Stabilization of subbase layer materials with waste pumice in flexible pavement
| Online Contents | 2008