Influence of Curing Time on the Drying Shrinkage of Concretes with Different Binders and Water-to-Binder Ratios

Yang, Jun; Wang, Qiang; Zhou, Yuqi

doi:10.1155/2017/2695435

Cited by 44 publications

(22 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Furthermore, the replacement of slag up to 15% increased the drying shrinkage. However, the use of a higher percentage resulted in decreasing the shrinkage [46][47][48][49].…”

Section: Influence Of Supplementary Cementitious Materials On Shrinkamentioning

confidence: 95%

“…Using fly ash of 50% replacement or less resulted in decreasing the free drying shrinkage [9,52]. The effect of fly ash in concrete has a higher on the drying shrinkage when wet curing time is reduced compared to ground granulated blast furnace slag and normal concrete [49]. Using fly ash and slag in concrete enhances the workability and reduces the plastic shrinkage area using 20% of fly ash and slag [53].…”

Section: Figure 1 Effect Of Silica Fume On the Autogenous Shrinkage mentioning

confidence: 99%

See 1 more Smart Citation

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

et al. 2020

View full text Add to dashboard Cite

Concrete is indeed one of the most consumed construction materials all over the world. In spite of that, its behavior towards absolute volume change is still faced with uncertainties in terms of chemical and physical reactions at different stages of its life span, starting from the early time of hydration process, which depends on various factors including water/cement ratio, concrete proportioning and surrounding environmental conditions. This interest in understanding and defining the different types of shrinkage and the factors impacting each one is driven by the importance of these volumetric variations in determining the concrete permeability, which ultimately controls its durability. Many studies have shown that the total prevention of concrete from undergoing shrinkage is impractical. However, different practices have been used to control various types of shrinkage in concrete and limit its magnitude. This paper provides a detailed review of the major and latest findings regarding concrete shrinkage types, influencing parameters, and their impacts on concrete properties. Also, it discusses the efficiency of the available chemical and mineral admixtures in controlling the shrinkage of concrete.

show abstract

“…Furthermore, the replacement of slag up to 15% increased the drying shrinkage. However, the use of a higher percentage resulted in decreasing the shrinkage [46][47][48][49].…”

Section: Influence Of Supplementary Cementitious Materials On Shrinkamentioning

confidence: 95%

Section: Figure 1 Effect Of Silica Fume On the Autogenous Shrinkage mentioning

confidence: 99%

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…e drying shrinkage of CGCAB at different ages (days 1, 3, 7, 14, 28, 45, 60, 90, 120, and 180) with different substitution rates is shown in Figure 8. It can be seen that the drying shrinkage increases with extended age due to the loss of water inside the specimen [42].…”

Section: Drying Shrinkagementioning

confidence: 99%

Effects of Corn Stalk Fly Ash (CSFA) on the Mechanical and Deformation Properties of Cemented Coal Gangue Backfill

Wang

Feng

et al. 2020

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

To reduce the amount of cement used in cemented coal gangue backfill (CCGB, a mixture of coal gangue, cement, fly ash, and water), mechanical and deformation properties of CCGB in which CSFA partially replaces the cement (0, 10, 20, 30, and 40 wt%) were studied. Compressive strength, acoustic emission during uniaxial loading, shear strength, and drying shrinkage were analysed. The compressive strength, shear strength, and drying shrinkage tests were performed at different curing times. The results showed that cemented coal gangue and corn stalk fly ash backfill (CGCAB) presented better performance, and the CGCAB with a 20% substitution rate had the best performance at day 28. Despite having the largest drying shrinkage value, 20% is the best choice for the substitution rate of CSFA. A 20% CSFA addition can enhance the bearing capacity of CGCAB and improve its failure mode, which is of great significance to support the upper overburden load and maintain the surface stability of the goaf.

show abstract

“…is test uses PO.42.5 cement-based cementitious materials. In terms of the conventional cement hydration, the developing analysis of ettringite and the hydration test of C3S cannot show the effect of temperature on the microproperties of cement hydration [15]. In this study, differential scanning calorimetry (DSC) is used to determine the thermal analysis of the relationship between heat and temperature of PO.42.5 cement under temperature control procedures (temperature rise, constant temperature, and temperature drop).…”

Section: Experimental Design Of Hydration Characteristics Of Cementitmentioning

confidence: 99%

Study on Strength Variation of Permeable Concrete Based on Differential Calorimetry Method and Multi-Index Test

Yang

Guo

Duan

et al. 2019

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

With the implementation of the Xiongan New Area and the urbanization construction plan surrounding the Beijing-Tianjin satellite, it is urgent to study and apply the sponge-permeable paving materials to solve the “urban waterlogging and heat island effect.” In this paper, the hydration microscopic characteristics of cementitious materials are analyzed by means of the differential scanning calorimetry (DSC) test. The test of water-cement ratio, porosity, and gradation structure on the strength and permeability coefficient is emphasized, and the strength change rule of porous permeable concrete is obtained. The research results are shown as follows: (1) The DSC test shows that the effect of temperature on the hydration process of cement is obvious. With the increase of temperature, the two exothermic peaks of cement hydration increase significantly and tend to overlap and the exothermic process is shortened. At 85°C, only one exothermic peak appeared, indicating that C3S hydration and ettringite formation process were completed at the same time in a relatively short time. (2) The optimal water-binder ratio of pervious concrete ranges from 0.24 to 0.30, and the optimal porosity ranges should be controlled within the range of 15%–25%. Moreover, the open gradation of pervious concrete mix ratio design is selected, and the cement content should be within the range of 20%–25%. (3) The mathematical model of permeability coefficient and porosity ratio of permeable concrete is established: k=−0.0003n2+0.0057n−0.0044; the mathematical model of permeability coefficient and compressive strength of open-graded pervious concrete: k=0.99006−0.05389c+8.02×10−4c2. The research results can provide theoretical support and technical guidance for the design and construction of permeable materials of sponge cities in Xiongan New Area and surrounding ring new area, which are of great engineering value.

show abstract

Influence of Curing Time on the Drying Shrinkage of Concretes with Different Binders and Water-to-Binder Ratios

Cited by 44 publications

References 45 publications

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

Effects of Corn Stalk Fly Ash (CSFA) on the Mechanical and Deformation Properties of Cemented Coal Gangue Backfill

Study on Strength Variation of Permeable Concrete Based on Differential Calorimetry Method and Multi-Index Test

Contact Info

Product

Resources

About