Comparative study of effect of raw and densified silica fume in the paste, mortar and concrete

Zhang, Zengqi; Zhang, Bo; Yan, Peiyu

doi:10.1016/j.conbuildmat.2015.12.045

Cited by 168 publications

(70 citation statements)

References 20 publications

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“…Some researches [5,6] supposed that the high pozzolanic reactivity of SF is attributed by the amorphous silicon dioxide and its very small spherical particle size. The particle size of SF is usually smaller than that of Portland cement which tends to increase the packing density of the hardened composite paste and thus lead to a better macro properties of concrete [5,7,8].…”

Section: Introductionmentioning

confidence: 99%

Hydration and microstructures of concrete containing raw or densified silica fume at different curing temperatures

Zhang

Yan

2016

Construction and Building Materials

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123

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Section: Introductionmentioning

confidence: 99%

Hydration and microstructures of concrete containing raw or densified silica fume at different curing temperatures

Zhang

Yan

2016

Construction and Building Materials

Self Cite

123

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“…The particle shape of Portland cement ( Fig. 2(a)) is solid and irregular [21] while according to [18] observation on the raw CBA ( Fig. 2(b)) shows that raw CBA is enormous,random shape, and high void.…”

Section: Chemical Propertiesmentioning

confidence: 99%

“…The properties of CBA on concrete with different grinding time are shown below. [21] b) Raw CBA [18] c) 15-min grinding CBA [9] d) 4-min grinding CBA [9] e) retained on Sieve 325 is less than 5% by weight [9] f) 30 [27] it is well known that, the calcium-silicatehydrate (CSH) is major present. According to work by Whittaker et al [28] shown in the SEM images as in Fig.…”

Section: Properties Of Hardened Coal Bottom Ash Concretementioning

confidence: 99%

A Review: The Effect of Grinded Coal Bottom Ash on Concrete

et al. 2017

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Abstract. This paper offers a review on the use of grinded coal bottom ash (CBA) on the concrete properties as demonstrated by strength test and microstructure test. Amount of CBA from power plant station was disposed in landfill because of the particle shape had a rough particles. By finding an alternative way to gain its surface area by grinding and used as replacement material as cement replacement may give a good side feedback on the strength and morphology of concrete. Most of the prior works studied on the grinded fly ash and grinded rice husk ash. The study on the influence of grinded CBA on the properties of concrete still limited and need more attention Therefore, the review on the effect of grinded CBA on the strength and microstructure of concrete are discussed.

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“…In fact, polymer modification of cement mortar is a process where polymer film forms in their binder phase and then fills the pores in specimens, which prevent the segregation of aggregates. Moreover, SF is constituted of very fine particles and can thus fill between cement particles, 28 subsequently leading to improved pore structure of specimens. As a result, the abrasion resistance of mortar is enhanced.…”

Section: Direct Tensile Bond Strengthmentioning

confidence: 99%

Influence of polyacrylic ester and silica fume on the mechanical properties of mortar for repair application

Jiang

Zhou

Huang

et al. 2017

Advances in Mechanical Engineering

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Experimental investigations on the influence of different amounts of polyacrylic ester and silica fumes on the mechanical properties of mortar such as the compressive strength, splitting tensile strength, bonding strength, and abrasion resistance are presented in this article. The results show that the compressive and splitting tensile strength of mortar can be improved with the addition of polyacrylic ester and silica fumes. Results obtained from both the direct tensile bond test and flexural bond test indicate that the addition of polyacrylic ester and silica fumes improves the bond strength significantly, and the enhancement is more obvious with polyacrylic ester paste as interfacial adhesives. Furthermore, mortar incorporation of polyacrylic ester and silica fumes shows superior abrasion resistance compared to the control mortar. Therefore, the correct combination of polyacrylic ester and silica fumes to produce mortars has been shown to have synergistic effects, which results in excellent properties including high bond strength and superior abrasion resistance. Mortars containing polyacrylic ester and silica fumes are ideal for repairing concrete especially for hydraulic concrete structure.

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Comparative study of effect of raw and densified silica fume in the paste, mortar and concrete

Cited by 168 publications

References 20 publications

Hydration and microstructures of concrete containing raw or densified silica fume at different curing temperatures

Hydration and microstructures of concrete containing raw or densified silica fume at different curing temperatures

A Review: The Effect of Grinded Coal Bottom Ash on Concrete

Influence of polyacrylic ester and silica fume on the mechanical properties of mortar for repair application

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