effect of drywet ratio on properties of concrete under

Leave Comment

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 ...

Get price

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

2019-8-27  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. 1.

Get price

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

In order to explore the drying–wetting cycle test method of concrete under sulfate accelerating erosion, the influence of dry–wet time ratio on concrete sulfate erosion was studied. Under the condition of 7 days for one cycle, five different dry–wet time ratios were designed: 1:3, 1:1, 3:1, 5:1, and 10:1. The basic properties such as compressive strength, splitting tensile strength and ...

Get price

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

2019-8-27  In order to explore the drying–wetting cycle test method of concrete under sulfate accelerating erosion, the influence of dry–wet time ratio on concrete sulfate erosion was studied. Under the condition of 7 days for one cycle, five different dry–wet time ratios were designed: 1:3, 1:1, 3:1, 5:1, and 10:1. The basic properties such as compressive strength, splitting tensile

Get price

Effect of dry-wet ratio on properties of concrete under ...

2021-11-17  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.

Get price

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

2019-8-27  Under the same drying–wetting cycle period, as the dry–wet ratio increases, the degree of deterioration of concrete by sulfate attack

Get price

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.

Get price

Influence of dry-wet ratio on properties and ...

This experimental study aims to determine the effect of dry-wet ratio on properties and microstructure of concrete under sulfate attack. Under the

Get price

Influence of dry-wet ratio on properties and ...

2020-12-10  The mechanical properties of concrete under drying-wetting cycle show a trend of decrease after an initial increase. the property of concrete with smaller dry-wet ratio increases more quickly in the first 60 days; the mechanical strength of concrete decrease significantly under the combined effect of expansion stress, salt crystallization ...

Get price

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

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

Get price

Effect of Dry-Wet Cycling on the Mechanical Properties of ...

2020-3-10  As a new grouting reinforcement material, high-water materials (HWMs) are being increasingly applied in different fields. This means that the environment in which these HWMs are employed are varied and increasingly complex. The dehydrating and saturation cycle of HWM caused by changes in the environment is referred to as the dry-wet cycle. To explore the

Get price

EFFECT OF DRY-WET CIRCULATION ON THE

2019-5-7  being damaged, the mechanical properties declining, and life of service being reduced.8–10 This paper studies the relationship between the me-chanical properties and the pore structure of the auto-claved aerated concrete under dry-wet circulation. Scanning electron microscopy (SEM) was used to characterize the micro-pore structure. By employing

Get price

Properties of Concrete Modified by Nano-Metakaolin

Abstract: The influence of nano-metakaolin on the compressive strength of concrete under the coupled effect of Salt Lake brine and dry-wet cycles was investigated, and the mechanism was analyzed by mercury intrusion analysis, X-ray diffraction, infrared spectroscopy, scanning electron microscopy and energy dispersive spectroscpy. ...

Get price

Influence of the Saturation Ratio on Concrete Behavior ...

When a concrete structure is subjected to an impact, the material is subjected to high triaxial compressive stresses. Furthermore, the water saturation ratio in massive concrete structures may reach nearly 100% at the core, whereas the material dries quickly on the skin. The impact response of a massive concrete wall may thus depend on the state of water saturation in the

Get price

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.

Get price

(Carbonation Effect on Durability of Concrete) - IJERT

2019-7-1  Concrete by Carbonation in a Natural Environment and an Accelerated Test Chamber,” 8 (2013) 9015 - 9029. [4] Ngala V.T. and Page C.L., “Effects of Carbonation on Pore Structure and Diffusional Properties of Hydrated Cement

Get price

Mechanical Properties of Concrete at Low Temperature ...

Laboratory studies were conducted on concrete compressive and splitting tensile strength, modulus of elasticity, and Poisson's ratio and on the local bond strength between concrete and steel under both monotonic and cyclic loadings in the temperature range of 20 °C and -70 ° C. These properties have increased value as temperature decreases.

Get price

Loading rate conditions and specimen size effect on ...

2018-11-9  Symons IF (1970) The effect of size and shape of specimen upon the unconfined compressive strength of cement-stabilized materials. Magaz Concrete Res 22:45–50. Article Google Scholar 22. Tuncay E, Hasançebi N (2009) The effect of length to diameter ratio of test specimens on uniaxial compressive strength of rock.

Get price

What is Poisson's Ratio of Concrete? - Civilmint

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

Get price

Properties of Concrete Modified by Nano-Metakaolin

Abstract: The influence of nano-metakaolin on the compressive strength of concrete under the coupled effect of Salt Lake brine and dry-wet cycles was investigated, and the mechanism was analyzed by mercury intrusion analysis, X-ray diffraction, infrared spectroscopy, scanning electron microscopy and energy dispersive spectroscpy. ...

Get price

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;

Get price

Concrete - Columbia University

2009-2-11  doing so under water. Cement is the “glue” that ... cess has a generally beneficial effect on the final con-crete properties. Examples of pozzolans are fly ash, ground granulated blast-furnace slag, and microsilica ... and other concrete properties solely based on the properties and proportions of the mix components.

Get price

Mechanical Properties of Concrete at Low Temperature ...

Laboratory studies were conducted on concrete compressive and splitting tensile strength, modulus of elasticity, and Poisson's ratio and on the local bond strength between concrete and steel under both monotonic and cyclic loadings in the temperature range of 20 °C and -70 ° C. These properties have increased value as temperature decreases.

Get price

(Carbonation Effect on Durability of Concrete) - IJERT

2019-7-1  Concrete by Carbonation in a Natural Environment and an Accelerated Test Chamber,” 8 (2013) 9015 - 9029. [4] Ngala V.T. and Page C.L., “Effects of Carbonation on Pore Structure and Diffusional Properties of Hydrated Cement

Get price

Factors Affecting the Shrinkage of Concrete Concrete ...

2021-12-7  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. Effect of High Alumina Cement 7.

Get price

Effects of Dynamic Properties of Rockfill Materials on ...

2021-4-12  effects of main parameters controlling dynamic properties of rockfills on seismic response of high CFRDs. The factors under consideration include initial shear modulus, the patterns of shear modulus and hysteretic damping ratio varying with shear strain.

Get price

Key Factors Affecting Strength of Concrete - Structural Guide

2021-12-9  The water-cement ratio is one of the most important factors affecting strength of concrete. Depending on the water-cement ratio, the compressive strength is defined in the mix designs. When we required a certain grade of

Get price

Loading rate conditions and specimen size effect on ...

2018-11-9  Symons IF (1970) The effect of size and shape of specimen upon the unconfined compressive strength of cement-stabilized materials. Magaz Concrete Res 22:45–50. Article Google Scholar 22. Tuncay E, Hasançebi N (2009) The effect of length to diameter ratio of test specimens on uniaxial compressive strength of rock.

Get price

What is Poisson's Ratio of Concrete? - Civilmint

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

Get price
Contact us

Submit online

Please leave a message below and we will contact you as soon as possible.