کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11001094 1430628 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development and testing of repair mortars for floor mosaic substrates
ترجمه فارسی عنوان
توسعه و آزمایش تعمیر ملات برای بستر موزاییک کف
کلمات کلیدی
موزاییکهای طبقه خمپاره های تاریخی، بسترها، انسجام، مواد تعمیر
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Mosaics were diachronically used as a mean to decorate floors of historic constructions. Their durability and resistance to loading and environmental parameters, was mostly attributed to their substrate, which composed of three to four very well compacted mortar layers. The construction of these substrates usually followed specific requirements and criteria, concerning both the selection of raw materials and the application techniques followed. This paper concerns a systematic study of double-layered mortars, designed and manufactured according to the characteristics found in ancient floor mosaic substrates. Specific parameters were taken into account, such as the binding system, the aggregates' type and gradation, the Binder/Aggregate (B/A) and Water/Binder (W/B) ratio, as well as the layers' thickness and the application technique. A series of test were performed at the age of 28, 90 and 180 days. The properties measured concerned porosity, apparent specific gravity, water permeability, capillary absorption, dynamic modulus of elasticity, flexural, compressive strength, while bond strength by pull off and tensile bond strength were conducted. From the evaluation of the results, it was concluded that good compaction and low W/B ratio ensured relatively high compressive strength (5-10 MPa), as well as increased adhesion between the mortar layers, while the addition of brick dust and crushed brick enhanced the layered mortars' performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Building Engineering - Volume 20, November 2018, Pages 501-509
نویسندگان
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