Creep and drying shrinkage of concrete containing GGBFS

Shariq, M.; Prasad, Jagdish; Abbas, Husain

doi:10.1016/j.cemconcomp.2016.02.004

Cited by 97 publications

(25 citation statements)

References 12 publications

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“…compared with the pure OPC mix (GI-1), which was consistent to the finding in [48]. The drying shrinkage of the pure GGBS (GI-2) was lower compared to OPC-GGBS blends (GI-3 and GI-4).…”

Section: Drying Shrinkagesupporting

confidence: 87%

Development of low drying shrinkage foamed concrete and hygro-mechanical finite element model for prefabricated building fasçade applications

Wan

Zhu

Yuen

et al. 2018

Construction and Building Materials

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“…compared with the pure OPC mix (GI-1), which was consistent to the finding in [48]. The drying shrinkage of the pure GGBS (GI-2) was lower compared to OPC-GGBS blends (GI-3 and GI-4).…”

Section: Drying Shrinkagesupporting

confidence: 87%

Development of low drying shrinkage foamed concrete and hygro-mechanical finite element model for prefabricated building fasçade applications

Wan

Zhu

Yuen

et al. 2018

Construction and Building Materials

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“…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

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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.

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“…on the other hand, the capillary tension of concrete because of the water evaporation is increased with the pore size refinement of concrete, which leads to the increase of drying shrinkage. The development and change of drying shrinkage of concrete depend mainly on the proportions of the positive and negative effect of the pore size refinement [13][14][15][16]. Combined the results shown in Figure 3 with the results shown in Figure 4, the positive effect of pore size refinement on the drying shrinkage is greater than the negative effect.…”

Section: Pore Structurementioning

confidence: 53%

Effect of Lithium Slag on Drying Shrinkage of Concrete with Manufactured-sand

He¹,

Wu²,

Yu³

et al. 2017

JRST

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ABSTRACT:In order to comprehensively grasp the effect of lithium slag on the properties of concrete and promote the application of lithium slag in concrete, the effect of lithium slag on drying shrinkage of concrete with manufactured-sand was studied by testing drying shrinkage of concrete with manufactured-sand at different ages. The corresponding effect mechanism was also analyzed by water retention of the corresponding mortar and the pore structure of concrete which was obtained by evaporable water test. The results indicate that 15% and 30% lithium slag decrease effectively the drying shrinkage of concrete with manufactured-sand, and with the increase of the content of lithium slag, the decrease effect is better. When the content of lithium slag is increased to be 45%, the drying shrinkage of the concrete is increased. The smaller pores correspond to the higher water retention to decrease the drying shrinkage of manufactured-sand concrete with the appropriate content of lithium slag.

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Creep and drying shrinkage of concrete containing GGBFS

Cited by 97 publications

References 12 publications

Development of low drying shrinkage foamed concrete and hygro-mechanical finite element model for prefabricated building fasçade applications

Development of low drying shrinkage foamed concrete and hygro-mechanical finite element model for prefabricated building fasçade applications

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

Effect of Lithium Slag on Drying Shrinkage of Concrete with Manufactured-sand

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