effect of dry–wet ratio on properties of concrete under
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effect of dry–wet ratio on properties of concrete under.

Effect of Dry-Wet Ratio on Properties of Concrete Under ...

Concrete is subjected to periodic damage process of initial damage followed by filling compaction, cracking, further filling, and cracking again, in that order. Dry-wet ratio has a significant effect on concrete sulfate attack. Under the same drying-wetting cycle period, as the dry-wet ratio increases, the degree of deterioration of concrete by ...

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Effect of Dry–Wet Ratio on Properties of Concrete Under ...

Dry–wet ratio has a significant effect on concrete sulfate attack. Under the same drying–wetting cycle period, as the dry–wet ratio increases, the degree of deterioration of concrete by sulfate attack increases first and then decreases. When the dry–wet ratio is

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Effect of Dry–Wet Ratio on Properties of Concrete Under ...

Dry–wet ratio has a significant effect on concrete sulfate attack. Under the same drying–wetting cycle period, as the dry–wet ratio increases, the degree of deterioration of concrete by sulfate attack increases first and then decreases. When the dry–wet ratio is 5:1, the deterioration is the most serious.

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Effect of Dry–Wet Ratio on Properties of Concrete Under ...

Aug 27, 2019  Dry–wet ratio has a significant effect on concrete sulfate attack. Under the same drying–wetting cycle period, as the dry–wet ratio increases, the degree of deterioration of concrete

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of Ratio on Properties of Concrete - researchgate

significant effect on concrete su lfate attack. Under the same drying–wetting cycle period, as the dry– wet ratio increases, the degree of deterioration of concrete by sulfate attack increases ...

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E ect of Dry–Wet Ratio on Properties of Concrete Under ...

Aug 27, 2019  E ect of Dry–Wet Ratio on Properties of Concrete Under Sulfate Attack Jin-Jun Guo, Kun Wang, Ting Guo, Zheng-Yun Yang and Peng Zhang * School of Water Conservancy Science and Engineering, Zhengzhou University, Zhengzhou 450001, China * Correspondence: [email protected] Received: 28 July 2019; Accepted: 26 August 2019; Published: 27 August 2019

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of Ratio on Properties of Concrete - researchgate

significant effect on concrete su lfate attack. Under the same drying–wetting cycle period, as the dry– wet ratio increases, the degree of deterioration of concrete by sulfate attack increases ...

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Effect of Dry─Wet Ratio on Properties of Concrete Under ...

Effect of Dry─Wet Ratio on Properties of Concrete Under Sulfate Attack. Guo. ; Wang.

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Materials Free Full-Text Effect of Dry–Wet Ratio on ...

Aug 27, 2019  For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. Feature Papers represent the most advanced research with significant potential for high impact in the field.

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Effect of Dry–Wet Cycle Periods on Properties of Concrete ...

Dry–wet cycle conditions have significant effects on the corrosion of concrete under sulfate attack. However, previous studies have only applied them as a method for accelerating sulfate attack and not systematically studied them as an object. In order to explore the impact of sulfate attack with different dry–wet cycle periods on concrete, in this study, four dry–wet cycle periods (3, 7 ...

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Effect of fly ash on mechanical properties and ...

Before the dry–wet cycle test, the ratio U e to U of the four groups of concrete is approximately 0.5. With the dry–wet cycle test, the proportion of U e in the three groups of concrete with FA under uniaxial compression increases to a certain extent. FA has a significant effect on the U e / U of concrete

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Experimental investigation for the effect of fiber on the ...

Aug 23, 2019  The purpose of this paper is to investigate the effect of steel and carbon fibers on the mechanical properties of light concrete in terms of tension strength, compressive strength and elastic modulus under completely dry and wet conditions.,In this study, the lightweight concrete made of Light Expanded Clay Aggregate (LECA) as coarse aggregate and sand as fine aggregate was used.

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Curing Effects on High-Strength Concrete Properties

Mar 06, 2019  The effects of hot and dry environments on high-strength concrete with different water/binder ratios (0.30, 0.35, and 0.40), using (30%) fly ash for all mixes, and (0%, 5%, and 10%) silica fume with the binder (450, 480, and 520 kg), respectively, were separately investigated, and the effects of curing under different conditions were evaluated ...

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LIGHTWEIGHT AGGREGATE CONCRETE: EFFECT OF AGE

The properties mainly depend on the properties of the lightweight aggregate like particle density, water absorption capacity. The aim is to study the impact of the time under water storage on compressive strength and fracture tests results. Keywords: Lightweight aggregate concrete (LWAC), standard cube test, under water storage, age effect 1.

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Properties of Concrete - Workability, Setting, Bleeding ...

Mar 19, 2017  Fresh concrete is that stage of concrete in which concrete can be moulded and it is in plastic state. This is also called "Green Concrete". Another term used to describe the state of fresh concrete is consistence, which is the ease with which concrete will flow. The transition process of changing of concrete from plastic state to hardened state.

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Properties of Fresh and Hardened Concrete

Jan 20, 2014  On the other hand, if a mix is too dry it may be difficult to place and compact, and segregation may occur because of lack of cohesiveness and plasticity of the paste. 5. PROPERTIES OF HARDENED CONCRETE The principal properties of hardened concrete which are of practical importance can be listed as: 1. 2. 3. 4.

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Properties of Hardened Concrete; A Detailed Guide.

Characteristic strength, drying shrinkage, creep, modulus of elasticity, permeability and resistance to chemical attack are hardened and time-dependent properties of concrete that may influence structural performance. We will discuss different properties of hardened concrete below in details. 1.

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Discrete element modeling of concrete under high stress ...

Feb 12, 2020  Gabet et al. , Vu et al. and Piotrowska et al. studied the triaxial behavior of dry, wet or fully saturated R30A7 concrete under a confinement stress up to 600 MPa. Experimental results obtained previously emphasized on the fact that the presence of free water in pores has an effect only when the free porosity (not occupied with water) is closed.

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Frontiers Experimental Study of Compressive Properties ...

To study the compressive properties and environmental impact of recycled aggregate, large-scale indoor compression tests were carried out on recycled aggregate under different moisture contents, concrete aggregate ratios, dry-wet cycles, and loads.The results showed that the crushing rate and settlement first increased and then decreased upon ...

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Research Article EFFECT OF WATER CURING TEMPERATURE

Özcan and et al [27] in a laboratory work evaluated the effects of various curing conditions (wet and dry curing) and silica fume on the compressive strength of mortar. For this aim, the ordinary Portland cement was substituted with silica fume into different ratios by weight (0%, 10%, 15%, 20% and 40%).

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Effect of Sand Fines and Water/Cement Ratio on Concrete ...

content also has adverse effect of the strength of concrete due to poor adhesion. Researchers have therefore develop various models for predicting the effect of sand fines and W/C on the strength of concrete. However, there is a gap in literature for the combined effect of sand fines and water/cement ratio’s effect on the properties of concrete.

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ELECTRICAL CONDUCTIVITY OF CONCRETE

Whereas dry concrete has resistivity in the range of 1012 ohm-mm. Hence oven dry concrete acts as an insulator. The variation in the measured electrical resistivity in wet and dry concrete can be interpreted to find that the electrical conductivity of concrete is a significant effect of the evaporable water present in it.

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EVALUATION OF MOISTURE DAMAGE WITHIN ASPHALT

Behavior of Asphalt Concrete Mixes under Cyclic Loading ... 17 Ratio (K) of wet/dry test modulus vs. no. of loading cycles ... prediction tools need to be developed that couple the effects of moisture on the properties of HMA mixtures with performance prediction to estimate the behavior of the

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FACTORS AFFECTING MODULUS OF ELASTICITY OF CONCRETE

🕑 Reading time: 1 minute Modulus of elasticity of concrete is the ratio of the stress to the strain of the concrete under the application of loads. It is one of the very crucial properties of concrete that gets affected with the influence in concrete strength, aggregate, cement paste,

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Flexural performance of TRC-strengthened RC beam under ...

Sep 03, 2018  Textile reinforced concrete (TRC) has excellent bearing capacity and anti-crack and corrosion resistance capacity, which are suitable for strengthening concrete structure under harsh environments.,In this thesis, flexural properties of RC beams strengthened with TRC under chloride wet–dry cycles were studied and the effects of the concentration of the salt solution, number of wet–dry ...

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What is Poisson's Ratio of concrete? - The Constructor

The concrete Poisson’s ratio under dynamic loads varies mostly between 0.20 to 0.25. By and large, it ranges from 0.1 for high strength concrete to 0.2 for low strength concrete. For design of concrete structures, the most common value of concrete Poisson’s ratio is taken as 0.2.

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LIGHTWEIGHT AGGREGATE CONCRETE: EFFECT OF AGE

The properties mainly depend on the properties of the lightweight aggregate like particle density, water absorption capacity. The aim is to study the impact of the time under water storage on compressive strength and fracture tests results. Keywords: Lightweight aggregate concrete (LWAC), standard cube test, under water storage, age effect 1.

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Properties of concrete in plastic and hardened state

Sep 12, 2017  A concrete in hardened state must be impermeable. Elasticity. Though hardened concrete is a brittle / material, it is desired that it should possess adequate elas­ticity. Shrinkage. A hardened concrete should experience least shrinkage. This property is guided by water cement ratio. Shrinkage is less if the water cement ratio is less.

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An Experimental Study on Concrete’s Durability and ...

concert’s properties, a host of investigations were performed on concrete’s mechanical properties and durability under various curing regimes. However, few studies were concerned with evaluating the concrete’s durability using non-destructive concrete surface resistivity tests by

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Top 10 Facts about Dry-Cast Concrete - NPCA

Sep 10, 2015  A dry-cast mixture has just enough water to initiate cement hydration within the range of 0.30 to 0.38 without the use of admixtures. Below, several important facts regarding dry-cast concrete are outlined. 1. Increased production. One benefit of using dry

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3 Ways Moisture Affects Concrete Strength - Polygon Group

How Moisture Affects Concrete Strength. Increased space between cement grains: Higher water-to-cement ratios result in greater spacing between the aggregates in cement, which affects compaction. Similarly, increased moisture levels reduce the concrete’s compressive strength and durability. As concrete’s surface area increases, particularly ...

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Properties of Concrete - Workability, Setting, Bleeding ...

Mar 19, 2017  Fresh concrete is that stage of concrete in which concrete can be moulded and it is in plastic state. This is also called "Green Concrete". Another term used to describe the state of fresh concrete is consistence, which is the ease with which concrete will flow. The transition process of changing of concrete from plastic state to hardened state.

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Effect of Wet-Dry Cycle on the Void Ratio of Expansive ...

Mar 21, 2019  This study investigates the change in the void ratio of Yazoo clay under a series of wet and dry cycles. Reconstituted Yazoo clay specimens were used for the experiment. The samples were subjected to 3, 5, and 7 number of wetting and drying cycles in an enclosed chamber for 24 hours period. During the drying process, the temperature ranged from ...

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