کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
259793 503644 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Properties of cement mortars containing clinoptilolite as a supplementary cementitious material
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Properties of cement mortars containing clinoptilolite as a supplementary cementitious material
چکیده انگلیسی

This paper presents a study of the properties and behavior of cement mortar with clinoptilolite which is one of the most common zeolite minerals found in nature. Six mortar mixtures were prepared by replacing the Portland cement with 0%, 5%, 10%, 15%, 20% and 30% clinoptilolite by weight. Test results showed that water demand, soundness and setting times of the cement pastes increased with the increase of clinoptilolite content. Compressive and flexural strength of the mortars containing clinoptilolite were higher than the control mixture. Dry unit weight of the mortars with clinoptilolite was lower than the control mortar. Clinoptilolite replacement decreased water absorption and porosity of the mortars. The control mortar showed less durability to carbonation compared to the mortars made with clinoptilolite at the end of carbonation tests. Freeze–thaw resistance of the mortars containing 5% clinoptilolite was higher than control mortar. The effect of clinoptilolite incorporation on high-temperature resistance seemed to be dependent on amount of clinoptilolite, temperature level, and the cooling method.


► The use of clinoptilolite in the mortars increases the strength values.
► Clinoptilolite replacement decreases water absorption and porosity of the mortars.
► Clinoptilolite incorporated mortars show better durability than the control mortar.
► The exploitation of clinoptilolite can lead to a considerable economic benefit.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 25, Issue 8, August 2011, Pages 3175–3180
نویسندگان
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