Investigation of usability of basalt aggregate obtained from different region as base and sub-base material

In this study, the usability of the dark grey colored basalt aggregate of volcanic origin, which is widely used in our country in recent years and has many reserves on earth, has been investigated. Sedimentary limestone sample was also obtained from the same regions to compare with basalt aggregates. Sieve analysis, frost resistance analysis with Sodium Sulfate, disintegration by impact experiment, specific gravity and water absorption value analysis in aggregates, analysis of compact and loose unit weight values, and Micro-Deval experiment were performed on both basalt and limestone aggregates collected from three different regions. In addition, the Proctor experiment was conducted to determine the relationship between the moisture and density of compacted soil in the formed sample mixes. As a result of the study, it is determined that the different aggregates taken from three different provinces possess the physical and mechanical properties to be used in the base and subbase layers of road construction, and they were in line with standards. It has been determined that the basalt aggregate collected from these regions is superior to the limestone aggregate, and when it is examined in terms of its physical and mechanical properties, it will help roads last longer.

Farklý bölgelerden temin edilen bazalt agregasýnýn temel ve alttemel malzemesi olarak kullanýlabilirliðinin araþtýrýlmasý

Bu çalýþmada ülkemizde son yýllarda yaygýn olarak kullanýlan ve yeryüzünde rezervine sýk rastlanan gri-siyah renkli volkanik kökenli bazalt agregasýnýn yol malzemesi olarak kullanýlabilirliði araþtýrýlmýþtýr. Bazalt agregalarý ile kýyaslama açýsýndan ayný bölgelerden sedimanter kökenli kalker numunesi de temin edilmiþtir. Üç farklý bölgeden temin edilen hem bazalt hem de kalker agregasý üzerinde elek analizi, Sodyum Sülfat ile dona karþý dayanýklýlýk, darbe ile parçalanma, agregalarda özgül aðýrlýk ve su emme deðerleri, sýkýþýk ve gevþek birim aðýrlýk deðerleri ve Mikro-Deval deneyleri yapýlmýþtýr. Ayrýca oluþturulan numune karýþýmlarýnýn sýkýþtýrýlmýþ toprakta nem ve yoðunluk arasýndaki iliþkinin belirlenmesi için Proktor deneyi yapýlmýþtýr. Çalýþmanýn sonucunda üç farklý ilden alýnan farklý kökenli agregalarýn yol inþaatýnda temel ve alttemel tabakalarýnda kullanýlmak üzere standartlarda belirttiði gibi fiziksel ve mekaniksel özelliklere sahip olduklarý belirlenmiþtir. Bölgelerden temin edilen bazalt agregasýnýn kalker agregasýndan daha üstün olduðu ve fiziksel ve mekanik özellikleri bakýmýndan incelendiðinde yolun ömrünün uzamasýnda katký saðlayacaðý belirlenmiþtir.