The effects of silanized rubber and nano-SiO2 on microstructure and frost resistance characteristics of concrete using response surface methodology (RSM)

Shi, Jicun; Zhao, Lei; Han, Chun; Han, Hua

doi:10.1016/j.conbuildmat.2022.128226

Cited by 23 publications

(6 citation statements)

References 51 publications

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“…Pre-compressed rubber can reduce air voids and therefore permeability and absorption by immersion pof RuC, increasing its resistance to sulphate attack and chloride ion penetration [60]. Attending to the literature, to improve durability of RuC with FCR, more attention must be paid to the ITZ improvement, through the use of air-detraining admixtures that reduce the amount of air trapped [33] or pozzolanic fillers (fly ash, metakaolin or Silica Fume) which reduce ITZ width [39], permeability of the matrix and fill voids showing a more homogeneous microstructure and less cracking in the boundary between hydratation products and aggregates [26,35,37,39,40,62]. It can be more efficiently improved when combined with a previous treatment of rubber, such as water cleaning (to eliminate dust from recycling and store process) and later a bath in acid dissolution to guarantee a better bond between rubber and cementitious matrix (obtaining a more rough and less hydrophobic rubber surface).…”

Section: Analysis and Discussionmentioning

confidence: 99%

Durability of Rubberized Concrete with Recycled Steel Fibers from Tyre Recycling in Aggresive Enviroments

Medina

Martínez

Medina

et al. 2023

Preprint

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Section: Analysis and Discussionmentioning

confidence: 99%

Durability of Rubberized Concrete with Recycled Steel Fibers from Tyre Recycling in Aggresive Enviroments

Medina

Martínez

Medina

et al. 2023

Preprint

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“…Several researchers have applied the use of RSM in the optimization of concrete containing waste materials, and it has been found to be an effective method for identifying mixtures that yield the best compromises among the responses [31,32]. Regression analysis, experimental designs, and recommended statistical tests are generated by RSM employing design of experiment (DOE) software packages such as Minitab and Design Expert [33].…”

Section: Response Surface Methodologymentioning

confidence: 99%

Response surface methodology use in optimization of concrete properties using blast furnace slag aggregate and recycled concrete sand

Poonam,

Singh

2023

Res. Eng. Struct. Mat.

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The utilization of waste materials in concrete plays a crucial role in sustainable construction by contributing to environmental conservation and enhancing concrete properties. However, waste management and sustainable construction present significant challenges within the construction industry. This study specifically focuses on the optimization of concrete properties by utilizing Blast furnace slag aggregate (BFSA) as coarse aggregate (CA) and recycled concrete sand (RCS) as fine aggregate (FA). To assess the impact of BFSA and RCS replacement parameters, response surface methodology (RSM) based on central composite design (CCD) was employed. The RSM regression equations generated in this study demonstrated high R2 values (>0.8), indicating their capability to explain the variability observed in the responses. To assess the impact of BFSA and RCS replacement parameters, response surface methodology (RSM) based on central composite design (CCD) was employed. In conclusion, the implementation of RSM enables the incorporation of waste materials into concrete, resulting in waste reduction without significant effects on concrete properties.

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“…For this reason, the speed of concrete destruction by freezing and thawing is accelerating. Hydrophobization prevents the rapid deterioration of concrete [45]. Shi et al [45] indicated that a silanized rubber is beneficial to apply in a frost-resistant concrete mixtures to achieve parameters that ensure the frost resistance of concrete.…”

Section: Frost Resistancementioning

confidence: 99%

“…Hydrophobization prevents the rapid deterioration of concrete [45]. Shi et al [45] indicated that a silanized rubber is beneficial to apply in a frost-resistant concrete mixtures to achieve parameters that ensure the frost resistance of concrete. At the optimal content of the hydrophobizing admixture in a concrete, a strong correlation is observed between the frost resistance and pores and voids structure.…”

Section: Frost Resistancementioning

confidence: 99%

Modification of Concrete Surface with Higher Fatty Acids

Barnat-Hunek¹,

Andrzejuk²,

Szafraniec³

et al. 2023

Adv. Sci. Technol. Res. J.

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The paper's research focuses on the development of novel hydrophobizing agents and the demonstration of their efficiency on a concrete surface. The starting materials are based on natural oils, water-soluble silanes and siloxanes, and/or tap water. Aqueous preparations have qualities that limit the influence of volatile organic compounds (VOCs) on the environment since they solely include biodegradable components. According to research, the higher fatty acids obtained from vegetable oils and derived from the glycerin phase can be employed as a component of concrete hydrophobizing agents while matching the standard requirements for such agents. Analysis of the usage of vegetable oil as a basis ingredient in the manufacturing of industrial substances shows that it is biodegradable with at least 95% certainty. The reference concrete after the frost resistance test showed a weight loss of 1.8%. In the case of hydrophobization, the weight loss was 33.3 to 72% less than the reference samples. In the case of concrete hydrophobized with the glycerin agents, the salt crystallization occurred inside the structure of the material without causing any damage, with the reference concrete showing a weight loss of 0.8%.

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The effects of silanized rubber and nano-SiO2 on microstructure and frost resistance characteristics of concrete using response surface methodology (RSM)

Cited by 23 publications

References 51 publications

Durability of Rubberized Concrete with Recycled Steel Fibers from Tyre Recycling in Aggresive Enviroments

Durability of Rubberized Concrete with Recycled Steel Fibers from Tyre Recycling in Aggresive Enviroments

Response surface methodology use in optimization of concrete properties using blast furnace slag aggregate and recycled concrete sand

Modification of Concrete Surface with Higher Fatty Acids

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