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The tensile strength of concrete was more sensitive to high temperatures than the compressive strength. Based on the test results, it can be concluded that adding 2% PP …
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compressive strength development is far slower than ordinary concrete, with a signi cant compressive strength increase beyond the 28-day mark [1,9,11,15,17] .
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The purpose of this paper is to study the tensile strength of cement-treated soil using Portland Cement Blended PCB 40 and figure out the relationship between these two parameters. Totally, 54 soil-cement specimens were prepared with different cement-soil ratios (i.e., C/S = 10%, 15%, 20%) and stored at room temperature under air-humid ...
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1. Introduction. Since the development of concrete, RC constructions allow for more and more filigree and lightweight elements with the contemporary growth of structure loads [].Reduced cross-sections of components are associated with advanced technologies and materials based on higher material properties [].With an increase in concrete …
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splitting tensile strengths of the cement soil and th e fiber-cement stabilized soil are increasing with the compressive strength. Strong linear relationships can be found between them.
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Figure 7 shows the tensile strength (TS) of concrete with the inclusion of glass fibers. It can be seen that concrete TS of concrete improved up to a certain extent with the incorporation of glass fibers in a similar way to CPM. ... The excellent fiber–matrix bonding quality made it possible for GF to increase the concrete's strength ...
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The quasi-static compressive and splitting tensile strength of concrete was found to be 49.48 and 5.42 MPa, respectively. Dynamic testing showed a significant 78% increase in compressive strength as the strain rate increased from 1.33 × 10–4 to 284 s−1.
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In this study, comprehensive investigation of the shrinkage compensation mechanisms of calcium-based expansive agents (CEAs), their effects on the properties of (ultra) high …
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By way of example, let's take a metal rod that is one square inch (2.5 cm2) in cross-sectional area. If it can withstand 1,000 pounds before breaking it would, therefore, have a tensile strength ...
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The tensile and compressive strengths of concrete are not proportional, and an increase in compressive strength is accompanied by an appreciably smaller percentage increase in tensile strength. According to the ACI Code Commentary, the tensile strength of normal-weight concrete in flexure is about 10% to 15% of the …
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Its primary function is to increase the tensile strength of concrete — its ability to resist stretching or pulling forces. When we talk about tensile strength, we refer to a material's resistance to breaking under tension. Concrete, on its own, has impressive compressive strength (resisting squishing), but it falls short in tensile strength ...
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The response of concrete under tensile loading is crucial for most applications because concrete is much weaker in tension than in compression. Understanding the response mechanisms of concrete under tensile conditions is therefore key to understanding and using concrete in structural applications. Understanding the …
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A number of experimental and numerical investigations of dynamic tensile behavior have been reported in the literature by using different types of materials, e.g., concrete, rocks, cement-based ...
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The study examines the tensile strength of concrete is impacted when recycled plastic granules are used in place of coarse aggregate. Because plastic has different qualities from typical coarse aggregate, the tensile strength may drop as plastic grains increase . The characteristic brittle failure seen in the case of control concrete …
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The tensile strength of concrete is receiving an increasing amount of attention since the loading capacity and durability of structures are being studied more thoroughly, and since nonlinear fracture mechanics and numerical methods require a …
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Natural fiber-reinforced concrete (NFFC) is appealing for low-cost construction in developing nations. 22 Regarding sustainability 23 and biodegradability, NF has become the preferred reinforcing material, 24 non-toxic, and environment-friendly. 25 The bio-based materials are increasing due to the need for eco-friendly nature. 26 …
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Adjusting the cement type and quantity; Reducing the water/cement ratio; Utilizing supplementary cementitious materials (SCMs) Altering the aggregates - type and gradations; Additionally, high-early strength concrete can be achieved through a 4x4 Concrete System.
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1. Introduction. The limited attention devoted thus far to the behaviour of concrete tensile strength at high temperature is at odds with the greater heat-sensitivity of concrete tensile strength compared to compressive strength, since microcracks tend to open under tension and close under compression [2], [15].A detailed overview of the …
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Tensile strength of concrete can be improved by adding steel and fiber. this will increase the cost also, so as a civil engineer we have to find optimal point for tensile strength against the cost.
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This paper investigated the dynamic response of plain concrete with three different strength grades, namely C30, C40, and C50, at an early age (3, 7, 14, and 28 days, …
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The addition of fibers to the concrete matrix raises the ductility index, reduces cracks propagation, and increases tensile strength, therefore increasing the stiffness of the element. ...
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🕑 Reading time: 1 minuteFactors Affecting Strength of Concrete Concrete strength is affected by many factors, such as quality of raw materials, water/cement ratio, coarse/fine aggregate ratio, age of concrete, compaction of concrete, temperature, relative humidity and curing of concrete. Quality of Raw Materials Cement: Provided the cement …
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Keywords: composite materials; fiber reinforced concrete; strains; fracture properties; microcracking; stress-strain diagram; tensile strength; Materials Research. DOI: 10.14359/1195. Date: 11/1/1992. Abstract: Many of the current applications of fiber reinforced concrete involve the use of fibers ranging around 1 percent by volume of …
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As a result, the direct tensile test is not the standard procedure. At the stipulated duration of curing, concrete tensile strength was discovered according to ASTM C496-71 for a typical cylindrical sample of size 150 (mm) in diameter and 300 (mm ... they improve the flexibility of concrete and increase its tensile strength. Fiber-reinforced ...
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Concrete is an inhomogeneous building material. It has a considerable and reliable compressive strength and a relative low tensile strength which can be even exhausted locally under unfortunate ...
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The addition of fibers helps to increase the performance of concrete in terms of resistance and flexibility. Different types of fibers that have different mechanical properties may change the behavior of concrete. Fiber-reinforced concrete with varied combinations of fibers (steel, macro synthetic, and polypropylene fibers) in 1% volume is …
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1. Introduction. With low tensile strength and strain capability, plain concrete is a fragile substance [1].Additionally, according to research, cement mortar may have issues with its tensile capacity, high porosity, fracture development, weak impact resistance, water penetrability, and chemical stability [2].Since the late 1960s, the usage …
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This chapter reviews various influences that affect the tensile strength of concrete. These influences include composition (e.g. type of aggregate and water cement ratio), age and …
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The tensile strength of concrete is receiving an increasing amount of attention since the loading capacity and durability of structures are being studied more thoroughly, and …
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In addition, the tensile strength of the cement mortar was measured with the three-point bending experiment, and the tensile strength of the cement mortar reached 2.16 MPa. The tensile strength of the aggregate was …
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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