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Recovery and Use of Blast Furnace Slag in the Field of Road Construction in Algeria

Open Journal of Civil Engineering 2013年第2期3卷 113-118页

作者： Kamel Rouabah Abdesselam Zergua ahmed beroual Mohamed Nacer Guetteche Department of Civil Engineering Constantine 1 University Constantine Algeria

Waste and industrial by-products represent a significant percentage of the industrial landfill. The evaluation of these products has a dual effect: it avoids both the landfill (risk of environmental pollution) and limits the use of natural aggregates (depletion of natural resources and landscape fragmentation and the imbalance of the ecosystem). In recent years, applications for industrial waste have been taken into account in the construction of roads with a great interest in many industrialized countries and developing countries. The use of these materials in the construction of the road is a decision based on technical, economic and ecological criteria. In Algeria, the steel plant of El-Hadjar (Annaba), due to its activity generates a significant industrial waste (slag) which creates a storage problem and pollution. For industrialized countries, this product is an abundant raw material at low cost that must be used on a large scale public works. Our study implies the use of slag in the preparation of the subgrade and surface course (as coated). The results of chemical, physical and mechanical analyses of El-Hadjar slag and materials developed, compared to those of natural aggregates, can be used as aggregate in road construction.

关键词： Bitumen Road Platform Mechanical Testing Blast Furnace Slag

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Self Compacting Concrete under Local Conditions

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Open Journal of Civil Engineering 2013年第2期3卷 119-125页

作者： Abderahmane Seddik ahmed beroual Abdesselam Zergua Mohamed Nacer Guetteche Department of Civil Engineering Constantine 1 University Constantine Algeria Department of Civil Engineering Ferhat Abbas University Setif Algeria

This paper presents the results of experimental investigations on mechanical properties of self compacting concrete made with local materials. The used materials were cement, aggregate and super plasticizer. Limestone powder, silica fume and blast furnace slag have been used as adjuvant in self compacting concrete (SCC). Self compacting concrete properties in fresh and hardened state are characterized and analyzed. The test results indicate the possibility to manufacture SCC with good rheological and mechanical properties using local materials.

关键词： Self Compacting Concrete (SCC) Mineral Additions Super Plasticizer Workability Compressive Strength and Tensile Strength

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