Drying shrinkage and cracking resistance of concrete made with ternary cementitious components

Xiang, Huimin; Shi, Zhenguo; Shi, Caijun; Tong, Baihui; Ou, Zhihua; Schutter, Geert De

doi:10.1016/j.conbuildmat.2017.05.113

Cited by 102 publications

(28 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Moreover, the incorporation of mineral admixtures also affects concrete shrinkage significantly [30]. The drying shrinkage mainly depends on the type of fine material used; it increases with slag content and can be reduced with the use of fly ash [31,32]. Silica fume mixes suffer from cracking, which can be reduced significantly through the incorporation of polypropylene fibers.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Ultra-Lightweight Foamed Concrete Incorporating Lightweight Aggregates

et al. 2019

View full text Add to dashboard Cite

Increasing interest is nowadays being paid to improving the thermal insulation of buildings in order to save energy and reduce ecological problems. Foamed concrete has unique characteristics and considerable potential as a promising material in construction applications. It is produced with a wide range of dry densities, between 600 and 1600 kg/m3. However, at a low density below 500 kg/m3, it tends to be unstable in its fresh state while exhibiting high drying shrinkage in its hardened state. In this study, lightweight aggregate-foamed concrete mixtures were prepared by the addition of preformed foam to a cement paste and aggregate. The focus of the research is the influence of fly ash, as well as fine lightweight aggregate addition, on the properties of foamed concrete with a density lower than 500 kg/m3. Concrete properties, including stability and consistency in the fresh state as well as thermal conductivity and mechanical properties in the hardened state, were evaluated in this study. Scanning electron microscopy (SEM) was used to study the microstructure of the foamed concrete. Several mixes with the same density were prepared and tested. The experimental results showed that under the same bulk density, incorporation of fine lightweight aggregate has a significant role on compressive strength development, depending on the characteristics of the lightweight aggregate. However, thermal conductivity is primarily related to the dry density of foamed concrete and only secondarily related to the aggregate content. In addition, the use of fine lightweight aggregate significantly reduces the drying shrinkage of foamed concrete. The results achieved in this work indicate the important role of lightweight aggregate on the stability of low-density foamed concrete, in both fresh and hardened states.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Ultra-Lightweight Foamed Concrete Incorporating Lightweight Aggregates

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Drying shrinkage stress is the main factor affecting durability of structures and their availability for construction. A previous research [9][10][11][12][13] revealed that the main parameters affecting a drying shrinkage rate include water-cement ratios and porous holes in the matrix. In FRC, fibers can be considered to decrease properties of the shrinkage strain localization given that they act as bridges for cement paste.…”

Section: Drying Shrinkage Test Resultsmentioning

confidence: 99%

Experimental Test on Drying Shrinkage of 3D-printed Fiber-reinforced Concrete at Early Ages

Hui¹,

Almansa²

2018

AJCEA

View full text Add to dashboard Cite

Drying shrinkage due to capillary tension in porous pores has been proven to affect the structural behaviour of concrete. Thus, this paper focuses on the drying shrinkage of 3D-printed fiber-reinforced concrete (3D-printed FRC). The specimens consisted of two groups fabricated by 3D printer for characterization and with a minimal friction of steel fibers in the concrete. One group was used for the compression strength test. The other group was used for drying shrinkage tests in a curing chamber with constant conditions over 60 days. The comparison of expected results and FIB model concrete 2010 suggest that porous structure effects of 3D-printed fiber-reinforced concrete (3D-printed FRC) should be considered. Thus, optimizing cement concrete matrix is necessary in proposing coefficients in moisture diffusion formulations.

show abstract

“…Furthermore, the concrete characteristics, including w/c ratio, cement type, aggregate, and incorporating admixtures influence the value of drying shrinkage significantly [11]. Hence, it is recommended to reduce the w/c ratio in the mixture to a minimum amount with the usage of superplasticizer, which can decrease the intensity of drying shrinkage [9,10]. Other measures to improve the behavior against drying shrinkage can be done by utilizing low heat cement or shrinkage cement.…”

Section: Drying Shrinkagementioning

confidence: 99%

“…The findings of these studies showed that the shrinkage properties are affected by the environmental conditions, aggregate type, cementitious materials, water/cement ratio, and chemical admixtures. Some cementitious replacements, such as fly ash, proved to improve the resistance of different types of concrete against shrinkage and development of cracks [8][9][10]. The use of recycled materials and polymeric waste has become a trend due to environmental consideration.…”

Section: Introductionmentioning

confidence: 99%

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

Drying shrinkage and cracking resistance of concrete made with ternary cementitious components

Cited by 102 publications

References 35 publications

Preparation and Characterization of Ultra-Lightweight Foamed Concrete Incorporating Lightweight Aggregates

Preparation and Characterization of Ultra-Lightweight Foamed Concrete Incorporating Lightweight Aggregates

Experimental Test on Drying Shrinkage of 3D-printed Fiber-reinforced Concrete at Early Ages

Shrinkage Behavior of Conventional and Nonconventional Concrete: A Review

Contact Info

Product

Resources

About