The investigation of factors affecting the water impermeability of inorganic sodium silicate-based concrete sealers

Jiang, Lihong; Xue, Xiao; Zhang, Weidong; Yang, Jingna; Zhang, Hongqiang; Li, Yanwen; Zhang, Rongpu; Zhang, Ziying; Xu, Lijin; Qu, Jian; Song, Jian; Qin, Jie

doi:10.1016/j.conbuildmat.2015.06.001

Cited by 58 publications

(24 citation statements)

References 23 publications

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“…Organic agents are highly protective but they feature limited service life and are susceptible to easy detachment [83]. Different silicates have been proposed as inorganic agents for concrete surface treatments with sodium silicate solution being the most common [84]. Concerning the conditions of the substrate, the roughness, the existing porosity and the moisture content are the most relevant parameters that should be taken into account.…”

Section: Protection Against Moisture and Aggressive Agent Penetrationmentioning

confidence: 99%

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External treatments for the preventive repair of existing constructions: A review

Sánchez

Faria

Ferrara

et al. 2018

Construction and Building Materials

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In the present paper different external surface treatments published in the literature as preventive solutions for improving the performance of existing concrete constructions are presented and discussed. They are categorized as repair materials for concrete conservation, protection surface methods against moisture and aggressive agent penetration, injection techniques for crack sealing and preventive repair solutions with smart functionalities. In a final section, the most extended testing methods for evaluating the effectiveness of the different repair solutions are summarized depending on the property to be enhanced: moisture control and resistance against penetration of aggressive agents. The review shows that although several possibilities exist for the repair of the existing constructions, there is a lack of comparative analysis between the different methodologies. SARCOS COST Action stablishes as scientific objectives to carry out comparative studies including the most advanced solutions for the external repair of concrete, giving criteria for effectiveness assessment and defining robust and reliable methods for charactering the performance of the repaired structures.

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Section: Protection Against Moisture and Aggressive Agent Penetrationmentioning

confidence: 99%

“…Pore blocking surface treatments increase the hardness and impermeability of the concrete surface layer while blocking the capillary pores [94,95]. The most common sealant agent is sodium silicate [96] although no agreement can be found in the literature concerning its effectiveness.…”

Section: 2treatments For Sealing the Concrete Surfacementioning

confidence: 99%

External treatments for the preventive repair of existing constructions: A review

Sánchez

Faria

Ferrara

et al. 2018

Construction and Building Materials

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“…This reaction leads to form calcium silicate hydrates (C-S-H), which provides strength in hardened cement paste. In addition, it results in lower porous microstructure and greater durability [41]. Lithium ions typically do not react in concrete which is a beneficial implication.…”

Section: Introductionmentioning

confidence: 99%

Influence of Surface Treatment of Recycled Aggregates on Mechanical Properties and Bond Strength of Self-Compacting Concrete

et al. 2019

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In the last decade there has been a massive growth for development of concrete infrastructures all around the world. Take into account environmental concerns, concrete technology should direct efforts toward assuring development and fabrication of sustainable and resilient concrete. For this purpose, incorporation of recycled concrete aggregate in concrete products particularly self-compacting concrete (SCC) for structural and non-structural application would be significant achievement. In this study the fresh and hardened properties of SCC prepared by substituting natural aggregates (NA) with recycled coarse aggregates (RCA). In addition, bonding behaviour of reinforced RCA-SCC for structural application was investigated. Moreover, surface treatment of RCA using lithium silicate solution was proposed to investigate its feasibility to improve the fresh and hardened properties of SCC as well as its bonding strength. The mechanical properties including compressive strength, tensile strength and elastic modulus of SCC mixes using untreated RCA and treated RCA (TRCA) were investigated. The results showed an improvement in performance of SCC mixes made with TRCA in compare with the untreated samples. The bond behaviour between SCC made with RCA and steel reinforcement was studied and the relationship between the brittleness and bonding of SCC mixes using untreated RCA and TRCA determined. The effect of surface treatment on the interfacial transition zone (ITZ) between adhered mortar and RCA studied using scanning electron microscope (SEM). It was determined that the treatment of RCA improved the bond at the ITZ through densification. The results gave experimental evidence of the suitability of RCA-SCC for structural use and application in reinforced concrete.

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“…Substantial resources are used to repair and rehabilitate the decayed structures. In some cases, the cost of repair even exceeds the initial investment [1,[12][13][14][15]. Therefore, there is a clear need to prevent the deterioration of reinforced concrete structure using waterproofing materials.…”

Section: Introductionmentioning

confidence: 98%

The study of an energy efficient cool white roof coating based on styrene acrylate copolymer and cement for waterproofing purpose—Part I: Optical properties, estimated cooling effect and relevant properties after dirt and accelerated exposures

Xue

Yang

Zhang

et al. 2015

Construction and Building Materials

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The investigation of factors affecting the water impermeability of inorganic sodium silicate-based concrete sealers

Cited by 58 publications

References 23 publications

External treatments for the preventive repair of existing constructions: A review

External treatments for the preventive repair of existing constructions: A review

Influence of Surface Treatment of Recycled Aggregates on Mechanical Properties and Bond Strength of Self-Compacting Concrete

The study of an energy efficient cool white roof coating based on styrene acrylate copolymer and cement for waterproofing purpose—Part I: Optical properties, estimated cooling effect and relevant properties after dirt and accelerated exposures

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