بتن خود فشرده ساز با الیاف فولادی
ترجمه نشده

بتن خود فشرده ساز با الیاف فولادی

عنوان فارسی مقاله: مقاومت در برابر ضربه ، ریزساختارها و پردازش تصویر دیجیتال روی بتن خود فشرده ساز با الیاف فولادی چین دار و دارای انتهای قلابی
عنوان انگلیسی مقاله: Impact resistance, microstructures and digital image processing on self-compacting concrete with hooked end and crimped steel fiber
مجله/کنفرانس: مصالح ساختمانی و ساخت و ساز – Construction and Building Materials
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: سازه
کلمات کلیدی فارسی: بتن خود فشرده ساز، الیاف دارای انتهای قلابی، الیاف چین دار، خواص تازه، استحکام فشاری، مقاومت در برابر ضربه، تجزیه و تحلیل میکروسکوپی، سختی
کلمات کلیدی انگلیسی: Self compacting concrete، Hooked end fiber، Crimped fiber، Fresh properties، Compressive strength، Impact resistance، Microscopic analysis، Toughness
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.conbuildmat.2019.06.001
دانشگاه: Department of Civil Engineering, Government College of Technology, Coimbatore, Tamilnadu 641013, India
صفحات مقاله انگلیسی: 16
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 4.686 در سال 2018
شاخص H_index: 129 در سال 2019
شاخص SJR: 1.522 در سال 2018
شناسه ISSN: 0950-0618
شاخص Quartile (چارک): Q1 در سال 2018
فرمت مقاله انگلیسی: PDF
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E12411
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست مطالب (انگلیسی)

Abstract

This research paper presents the results of extensive experimental investigations and analytical results on the fresh and hardened properties of self-compacting concrete reinforced with hybrid hooked end fiber (HF) and crimped steel fiber (CF) in different fiber volume fractions. In this present investigation, the mixes were reinforced with different fiber combinations of hooked end fiber (0.25, 0.5 and 0.75%) and crimped fiber (0.25 and 0.5%). The fresh state properties of the mixes were characterized by using slump flow diameter, T50cm, and V-funnel test. The hardened properties of self-compacting concrete (SCC) mixes were assessed by using compressive strength, flexural strength and impact resistance test. Regression analysis was carried out in order to correlate the fresh and hardened state on the extensively large volume of collected experimental data. The results reported that adding hybrid hooked endcrimped steel fiber significantly improves the compressive strength, flexural strength and impact resistance. Addition of hooked end steel fiber led to improve the compressive strength when compared to crimped end fiber. Moreover, increasing the crimped fiber content decreased the effect of hooked end steel fiber in flexural strength improvement.

Introduction

In last two decades, the major research projects have focused on steel fiber reinforced concrete (FRC) for the construction of tunnels, airport runways, hydraulic structures, railway sleepers, underground works, earthquake resistance structures and highway projects like bridges [31]. The study of the fresh and hardened properties of FRC Akcay and Tesdemir [3] reported that length, diameter and shapes of fiber were extensively most important parameters that significantly affect the reinforcing capacity and toughening behavior of steel fiber reinforced concrete. Many Foreign researchers have manufactured fiber reinforced concretes by adding different geometries or shapes of single steel fiber. They produced concretes with better reinforcing capacity, compressive strength, flexural strength, toughness and fracture energy absorption capacity than single-fiber-reinforced concrete. Main drawback of concrete with fibers is its very low ductility property. Moreover, these plain concrete has low tensile characteristics, flexural strength and corresponding properties. Incorporation of steel fibers is a very effective way of producing plain concrete with enhanced hardened properties such as compressive, flexural strength properties and impact resistance.