混凝土的抗压和抗弯强度之间的经验关系含有再生沥青材料的路面应用使用不同的试样配置

IF 1.1 4区 工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
C. Marín-Uribe, R. Navarro-Gaete
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引用次数: 3

摘要

路面混凝土的抗弯强度通常通过测试梁或应用经验方程来推导。在本次调查中,生产了混凝土混合物,包括按重量计0%、20%、50%和100%的再生沥青路面(RAP),作为天然骨料的替代品。使用立方体试样测量抗压强度,并测量三种类型试样的弯曲强度;梁、半圆形(SCB)和改良梁。这项研究提出了对数和幂方程,可以估计混凝土混合物的弯曲强度,其中RAP是其抗压强度的函数。提出了线性或幂次模型来预测SCB试件的梁弯曲强度,并提出了修正梁试件的对数模型。统计分析表明,所提出的预测模型可以被认为是足够准确的,并且它们的使用是合理的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Empirical relationships between compressive and flexural strength of concrete containing recycled asphalt material for pavement applications using different specimen configurations
The flexural strength of pavement concrete is generally deduced by testing beams or by applying empirical equations. In this investigation, concrete mixtures were manufactured, incorporating 0, 20, 50 and 100% Reclaimed Asphalt Pavement (RAP), by weight, as a replacement for natural aggregates. The compressive strength was measured using cubic specimens and the flexural strength was measured for three types of specimens; beam, semicircular (SCB) and modified beam. This study proposes logarithmic and power equations that allow the estimation of the flexural strength of a concrete mix that incorporates RAP as a function of its compressive strength. Linear or power models are proposed to predict beam flexural strength from SCB specimens and a logarithmic model for modified beam specimens. Statistical analyses show that the proposed prediction models can be considered sufficiently accurate and their use is justified.
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来源期刊
Materiales de Construccion
Materiales de Construccion 工程技术-材料科学:综合
CiteScore
3.20
自引率
9.50%
发文量
38
审稿时长
>12 weeks
期刊介绍: Materiales de Construcción is a quarterly, scientific Journal published in English, intended for researchers, plant technicians and other professionals engaged in the area of Construction, Materials Science and Technology. Scientific articles focus mainly on: - Physics and chemistry of the formation of cement and other binders. - Cement and concrete. Components (aggregate, admixtures, additions and similar). Behaviour and properties. - Durability and corrosion of other construction materials. - Restoration and conservation of the materials in heritage monuments. - Weathering and the deterioration of construction materials. - Use of industrial waste and by-products in construction. - Manufacture and properties of other construction materials, such as: gypsum/plaster, lime%2
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