THE USE OF INDUSTRIAL WASTE OF CRUSHING STATIONS OF LIMESTONE ROCKS IN ROAD ENGINEERING
THE USE OF INDUSTRIAL WASTE OF CRUSHING STATIONS OF LIMESTONE ROCKS IN ROAD ENGINEERING
The work focuses on using local industrial waste to formulate new materials that can be used in road construction. This waste is limestone sand obtained from a local limestone crushing plant. Therefore, this work is divided into two parts for experimental research. The first part aimed to study the effect of the addition of limestone sand on the physico-mechanical behavior of tuff-limestone-sand mixtures. Different proportions of limestone sand from 0 to 50% were considered. Through the results of compaction, load-bearing and compressive strength tests, the 80% tuff + 20% lime sand formula with the best mechanical strength can be selected. The second part aimed to study the effect of treatment with small amounts (4% and 8%) of hydraulic binder on the mechanical properties of optimal mixtures of tuff and limestone sand. After treatment, the mechanical properties of the optimal mixtures were significantly improved. Finally, the experimental approach revealed the possibility of designing pavements using local materials containing tuff and quarry waste, and demonstrated the importance of hydraulic binder treatment processes, which are necessary to mitigate instability problems in wet conditions.
Goual Idriss; Gueddouda Kamel; Goual Mohamed Sayah; Said Taibi; Nabil Aboubekr; Ferhat Ahmida
18th African Regional Conference on Soil Mechanics and Geotechnical Engineering (ARCSMGE2024)
Environmental geotechnics
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