مهندسی نساجی گیلان:. گیل تکس

سایت تخصصی نساجی و پوشاک

مهندسی نساجی گیلان:. گیل تکس

سایت تخصصی نساجی و پوشاک

Effect of low modulus fibers on mechanical properties of mortars


Effect of low modulus fibers on mechanical properties of mortars

B.Nasiri, A.Sadrmomtazi, R.Bakhoda, A.K.Haghi

Abstract

Cement-based materials, such as mortars and concretes are brittle in nature, with low bending strength and toughness. Therefore, the use of these materials in practice involves their combination with reinforcement, either as steel rods or with textiles. In this paper, nylon and polypropylene fibers were used in the form of short fiber and straight yarns in the various reinforcing ratio as reinforcement for the study on the efficiency of low modulus fibers on mechanical properties of mortars. The test results show that, reinforcement by textiles in the both form of short fiber and straight yarns improves the compressive and flexural performances of the cement mortars. The polypropylene fiber with higher length provides better performance in flexural strength increase. In comparison with straight yarns the contribution of chopped strands in strength of mortar was low. The values of flexural strength decreased with increasing the number of layer. Keywords: Cement mortars; Textile; Compressive strength; Flexural strength


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مدیر سایت چهارشنبه 4 اردیبهشت‌ماه سال 1392 ساعت 04:57 ب.ظ
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