Experimental Study on Engineering Properties of Basalt Fiber Reinforced Lightweight Mortar

Öz

Basalt fiber is a new inorganic fiber type that has recently taken attention in cementitious materials reinforcing applications. In this study, the effect of the chopped basalt fiber inclusion and volume fractions on workability, mechanical properties, and capillarity of mortars were investigated. Lightweight mortars (LWM) were prepared by partial replacement of river sand with pumice aggregate as 0%, 25%, and 50% by volume. The chopped basalt fibers with a volume fraction of 0%, 0.25%, and 0.5% were utilized in LWM mixes. According to the applied tests, it was concluded that the increase of pumice aggregate content is significantly effective on obtained values, whereas, the influence of adding basalt fiber is changeable for the performed test results. Additionally, the statistical analysis of experimental results was implemented by general linear model ANOVA.

Anahtar Kelimeler

• Basalt fiber
• lightweight mortar
• engineering properties

Bazalt Elyaf Takviyeli Hafif Harcın Mühendislik Özellikleri Üzerine Deneysel Çalışma

Öz

Bazalt elyaf, takviyeli çimentolu malzeme uygulamalarında son zamanlarda dikkat çeken bir inorganik elyaf türüdür. Bu çalışmada, kırpılmış bazalt lif katkısının ve hacim oranlarının harçların işlenebilirliği, mekanik özellikleri ve kapilaritesi üzerindeki etkisi araştırılmıştır. Hafif harçlar (HH), nehir kumunun hacimce %0, %25 ve %50 oranlarında pomza agregası ile kısmi olarak değiştirilmesi ile hazırlanmıştır. HH karışımlarında hacim oranı %0, %0,25 ve %0,5 olan kırpılmış bazalt lifleri kullanılmıştır. Uygulanan testlere göre, pomza agregası içeriğindeki artışın elde edilen değerler üzerinde önemli ölçüde etkili olduğu, bazalt lif ilavesinin etkisinin ise gerçekleştirilen test sonuçları için değişebilir olduğu sonucuna varılmıştır. Ayrıca, deneysel sonuçların istatistiksel analizi genel doğrusal model ANOVA ile gerçekleştirilmiştir.

Anahtar Kelimeler

• Bazalt Elyaf
• Hafif Harç
• Mühendislik Özellikleri

Kaynakça

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