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effect of dry–wet ratio on properties of concrete under

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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 5:1, the deterioration is the most serious.

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of Ratio on Properties of Concrete - researchgate

effect of two dry–wet ratios (7:1 and 5:3) on the chloride content in concrete using an 8 h cycle [13]. Sobhan et al. used a dry-to-wet ratio of 1:1 and cycle periods of 12 h, 24 h, and 48 h to ...

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

2019-8-1  Effect of Dry─Wet Ratio on Properties of Concrete Under Sulfate Attack. Guo. ; Wang.

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

Effect of Dry–Wet Cycle Periods on Properties of Concrete under Sulfate Attack Jin ‐ Jun Guo 1 , Peng ‐ Qiang Liu 1 , Cun ‐ Liang Wu 2 and Kun Wang 1, *

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Effect of dry–wet ratio on pore-structure characteristics ...

2021-4-19  Under dry–wet cycle, the impact of cement hydration on the properties of concrete materials should be considered. The total volume of specimens among different dry–wet ratios showed a downward trend. Quantitative analysis indicate porosity is positively correlated with dry–wet ratio.

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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 dryndash;wet cycle periods ...

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Effect of dry–wet ratio on pore-structure characteristics of

2021-4-19  Effect of dry–wet ratio on pore-structure characteristics of fly ash concrete under sulfate Materials and Structures ( IF 3.428) Pub Date : 2021-04-19, DOI: 10.1617/s11527-021-01700-2 Kun Wang, Jinjun Guo, Xuanjun Liu, Lin Yang, Peng Zhang

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

2021-1-19  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 ...

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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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EFFECT OF CARBONATION, CHLORIDE AND SULPHATE

2018-8-9  The most aggressive effects on concrete are ... sulphate solution in a dry-wet cycle was introduced to simulate the external sulphate corrosion environment. The deterioration trend of concrete strength and development law of ... the resistance to chloride-ion penetration of concrete under the environment of carbonation.

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ELECTRICAL CONDUCTIVITY OF CONCRETE

2016-5-19  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

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Curing of Concrete

2021-9-16  EFFECT OF DURATION OF CURING ON PROPERTIES OF CONCRETE The strength of concrete is affected by a number of factors, one of which is the length of time for which it is kept moist, ie cured. Figure 1 illustrates this, comparing the strength (at 180 days) of concrete for which the surfaces have been: n kept moist for 180 days;

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Effect of Sand Fines and Water/Cement Ratio on

2019-10-29  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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Curing Effects on High-Strength Concrete Properties

2019-3-6  This study was conducted to investigate the impact of hot and dry environments under different curing conditions on the properties of high-strength concrete. The concrete samples were prepared at a room temperature of 20°C and cured under different curing conditions. Some specimens underwent standard curing from 24 h after casting until the day of testing.

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Influence of the Marine Environment on Reinforced

2011-12-2  dry cycles. The effect of the exposure conditions on concrete degradation in marine environment is presented. Keywords: Concrete, degradation, marine environment, SEM, DRX. 1. INTRODUCTION Concrete is a very important construction material. It is highly resistant to compression forces, but week under traction forces.

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Factors Affecting Curing and Effects of Concrete Curing ...

2017-2-2  Curing is a procedure that is adopted to promote the hardening of concrete under conditions of humidity and temperature which are conducive to the progressive and proper setting of the constituent cement. Curing has a major influence on the

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LIGHTWEIGHT AGGREGATE CONCRETE: EFFECT OF AGE

2015-1-12  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 Hardened Concrete; A Detailed Guide.

2021-11-11  We will discuss different properties of hardened concrete below in details. 1. STRENGTH. In simple language, the strength of concrete means the maximum amount of load which it can handle. In common practice, it is the power of the concrete which is

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Curing of Concrete

2021-9-16  EFFECT OF DURATION OF CURING ON PROPERTIES OF CONCRETE The strength of concrete is affected by a number of factors, one of which is the length of time for which it is kept moist, ie cured. Figure 1 illustrates this, comparing the strength (at 180 days) of concrete for which the surfaces have been: n kept moist for 180 days;

View More

EFFECT OF CARBONATION, CHLORIDE AND SULPHATE

2018-8-9  The most aggressive effects on concrete are ... sulphate solution in a dry-wet cycle was introduced to simulate the external sulphate corrosion environment. The deterioration trend of concrete strength and development law of ... the resistance to chloride-ion penetration of concrete under the environment of carbonation.

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Fundamentals of Concrete - USDA

dry aggregate neither absorbs water from or contributes water to the concrete mixture. WATER-CEMENT RATIO (w/c) - The water-cement ratio of a concrete mix is the ratio of the weight of free-water in the mix to the weight of cement in the mix. It is computed on a weight basis by simply dividing the weight of the water in the mix by the

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Water in Concrete For Construction Pros

2014-4-23  The amount of water in concrete controls many fresh and hardened properties in concrete including workability, compressive strengths, permeability and watertightness, durability and weathering ...

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Drying Shrinkage

1999-7-12  Drying shrinkage is dependent upon several factors. These factors include the properties of the components, proportions of the components, mixing manner, amount of moisture while curing, dry environment, and member size. Concrete cured under

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The Effect of Aggregate Properties on Concrete

2000-3-30  The Effect of Aggregate Properties on Concrete Concrete is a mixture of cementious material, aggregate, and water. Aggregate is commonly considered inert filler, which accounts for 60 to 80 percent of the volume and 70 to 85 percent of the weight of concrete.

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Concrete Technology in Focus - BASF Insights

2018-11-12  The effect of coarse aggregate on drying shrinkage is twofold. First, the use of a high coarse aggregate content will minimize the total water and paste contents of the concrete mixture and, therefore, drying shrinkage. The effects of aggregate-cement ratio and water-cement ratio on drying shrinkage are iIIustrated in Fig. 3.

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Factors Affecting the Shrinkage of Concrete Concrete ...

2021-11-5  Shrinkage of hardened concrete is influenced by various factors in a similar manner as that of creep under drying conditions. These factors are: 1. Aggregate Content 2. Quality of Cement Paste 3. Water Content 4. Properties of Cement 5. Chemical Composition of Cement 6.

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Properties of concrete in plastic and hardened state

2017-9-12  Properties of Concrete in Plastic State ; A freshly mixed concrete must possess the under mentioned properties. Good workability. Workability of concrete may be defined as the ease with which it can be mixed, transported, and placed in position in a homogeneous state. No segregation.

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Fundamentals of soil stabilization SpringerLink

2017-12-16  Generally, soil stabilization is a method of improving soil properties by blending and mixing other materials. Improvements include increasing the dry unit weight, bearing capabilities, volume changes, the performance of in situ subsoils, sands, and other waste materials in order to strengthen road surfaces and other geotechnical applications.

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