Influence of the use of rice husk ash on the electrical resistivity of concrete: A technical and economic feasibility study

Gastaldini, A.L.G.; Isaia, Geraldo Cechella; Hoppe, Tobias; Missau, Fabiana Cristina; Saciloto, A.P.

doi:10.1016/j.conbuildmat.2009.06.039

Cited by 62 publications

(29 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to data in Table 1, concrete or mortar samples were casted with a w/b ratio between 0.4 and 0.65 by mass in most reviewed Advances in Materials Science and Engineering 5 [34]. Also, Rice Husk Ash (RHA) as a cementitious supplementary material was only studied by Gastaldini et al [63]. Work done by authors of this paper seems to be the only one that considered crystalline admixture as a healing agent to investigate its effect on electrical resistivity of concrete.…”

Section: Materials and Exposurementioning

confidence: 99%

Electrical Resistivity of Concrete for Durability Evaluation: A Review

Azarsa

Gupta

2017

Advances in Materials Science and Engineering

226

View full text Add to dashboard Cite

Degradation processes in reinforced concrete structures that affect durability are partially controlled by transport of aggressive ions through the concrete microstructure. Ions are charged and the ability of concrete to hold out against transfer of ions greatly relies on its electrical resistivity. Hence, a connection could be expected between electrical resistivity of concrete and the deterioration processes such as increase in permeability and corrosion of embedded steel. Through this paper, an extensive literature review has been done to address relationship between concrete electrical resistivity and its certain durability characteristics. These durability characteristics include chloride diffusivity and corrosion of reinforcement as these have major influence on concrete degradation process. Overall, there exists an inverse or direct proportional correlation between these parameters. Evaluated results, from measuring the concrete electrical resistivity, can also be used as a great indicator to identify early age characteristics of fresh concrete and for evaluation of its properties, determination of moisture content, connectivity of the micropores, and even condition assessment of in-service structures. This paper also reviews and assesses research concerning the influential parameters such as environmental conditions and presence of steel rebar and cracks on measuring electrical resistivity of concrete. Moreover, concrete resistivity concept, application, and its various measurement techniques are introduced.

show abstract

Section: Materials and Exposurementioning

confidence: 99%

Electrical Resistivity of Concrete for Durability Evaluation: A Review

Azarsa

Gupta

2017

Advances in Materials Science and Engineering

226

View full text Add to dashboard Cite

show abstract

“…A. Gastaldini et al reported that concrete incorporating RHA1 (with an average particle size of 95μm) at the percentages of 5, 10 and 15%, exhibited higher compressive strength, the 10% RHA1 exhibited the best results. With the 5 and 10% mix of ultra-fine RHA2 (with an average particle size of 5μm), the compressive strength of all concretes was enhanced at all ages, however, in the condition of 20% content, whether RHA1or RHA2, all concretes exhibited decreased compressive strength [28]. Thus, it is evident that, the particle size of RHA affects the properties of concrete.…”

Section: Introductionmentioning

confidence: 90%

“…The reasons are concluded that RHA decreases Ca(OH) 2 and clearly ameliorates the pore structure, a denser micro-structure can be achieved, penetrability is decreased, and accordingly a better durability is obtained. Several studies showed that, RHA noticeably improved the durability of concrete [27][28][29]35]. Q.J.…”

Section: Effects Of Rha On the Durability Of Concretementioning

confidence: 99%

“…Subsequently, the application of RHA in concrete as an admixture material was also reported [12][13][14]. In recent years, domestic and overseas scholars have conducted a great deal of experimental research on the properties of concrete incorporating RHA and achieved valuable results [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. Furthermore, the results showed that high activity RHA can be used, as mineral admixture, in ultra-high strength concrete [5,32].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Rice Husk Ash on the properties of Concrete: a Review

Peng¹

2016

Proceedings of the 2016 International Forum on Energy, Environment and Sustainable Development

View full text Add to dashboard Cite

Rice husk ash (RHA), produced by burning rice husk under controlled conditions, due to its high activity and high specific surface area, can be applied to concrete by replacing cement, such as in normal concrete and high-strength / high-performance concrete. In addition, its application in ultra-high strength concrete has also been reported. Many experimental studies have shown that, RHA improves the mechanical properties of concrete, decreases permeability properties and significantly ameliorates its durability. The adverse effect of reducing a slump of concrete can be resolved by increasing water reducing agent. RHA in concrete has a preferable application prospect in the future. This paper will summarize many experimental results of the application of RHA in concrete and become a reference for further research on the use of RHA in concrete.

show abstract

“…After curing for 7 d, 14 d and 28 d, the processed slurry particles were ground into powder, and then immersed in deionised water [20]. The ratio of water to solid mass was 100:1.…”

Section: Solution Ph Value and Ion Concentration Testmentioning

confidence: 99%

Effects of Fly Ash Content on Properties of Cement Paste Backfilling

Qi¹,

Feng²,

Zhāng³

et al. 2015

JRST

View full text Add to dashboard Cite

ABSTRACT:Fly ash has been considered as an ideal raw material component of cement paste backfilling (CPB) due to its good pozzolanic activity. In this study, the effects of fly ash content (340-420 kg/m 3 ) on the compressive strength, resistivity and microscopic characteristics of CPB were investigated. The results indicated that at the early curing age, the resistivity decreased with increasing fly ash content, while the compressive strength did not vary significantly; at the curing times of 7 d, 14 d and 28 d, the compressive strength exhibited an increasing trend because of the higher content of reaction products and the compaction of pore structure, and the resistivity also increased due to the decreased ionic concentrations of pore solution and the greater resistance to transporting current through the pore network system. Apparently, there existed a linear relationship between the compressive strength and the resistivity of CPB samples.

show abstract

Influence of the use of rice husk ash on the electrical resistivity of concrete: A technical and economic feasibility study

Cited by 62 publications

References 9 publications

Electrical Resistivity of Concrete for Durability Evaluation: A Review

Electrical Resistivity of Concrete for Durability Evaluation: A Review

Influence of Rice Husk Ash on the properties of Concrete: a Review

Effects of Fly Ash Content on Properties of Cement Paste Backfilling

Contact Info

Product

Resources

About