کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6480586 1428759 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of strength and durability of lean mortar mixes containing marble waste
ترجمه فارسی عنوان
ارزیابی قدرت و دوام از مخلوط ملات لاغر شامل ضایعات سنگ مرمر
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


- Marble waste was evaluated as a potential substitute of river sand in mortars.
- Marble waste can significantly accelerate hydration process.
- 25% of sand can be substituted by marble waste when mortars are exposed to an aggressive environment.

This study was carried out to test the suitability of marble waste as a fine aggregate in lean mortar mixes. Marble waste was crushed in the form of fine aggregate, then it was substituted in place of river sand from 0% to 100% by volume. It was found that by incorporation of marble waste from 25% to 50%, maximum benefits could be derived in terms of reduced water requirement, improved mechanical performance and enhanced durability. At 50% substitution the water requirement to attain the required workability fell by 6% and compressive strength increased from 2.84 MPa to 7.04 MPa. When exposed to 5% sodium sulphate and sulphuric acid solutions, the mortar mix with 25% marble waste and 75% of river sand performed at par with control mortar. In view of these results it was concluded that marble waste can be safely used in both aggressive and non-aggressive environments by replacing river sand by 25% and 50% respectively in lean mortar mixes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 147, 30 August 2017, Pages 598-607
نویسندگان
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