Use of alkali activated high-calcium fly ash binder for kaolin clay soil stabilisation: Physicochemical evolution

Coudert, Elodie; Paris, Michaël; Deneele, Dimitri; Russo, Giacomo; Tarantino, Alessandro

doi:10.1016/j.conbuildmat.2018.12.188

Cited by 65 publications

(34 citation statements)

References 35 publications

(40 reference statements)

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“…It is noticeable the beneficial effect of CaSiO 3 as a possible corrective of soil acidity and calcium supply to the corn crop (Tables 5 and 6), since it positively impacted on soil fertility (Zanao et al, 2017;Liu et al, 2018;Coudert et al, 2019). When the lowest dose of CaSiO 3 without limestone was used, the proportional values of biomass were found in relation to the other doses (Table 6), and the recommended dose was to be used in a dystrophic red Latosol.…”

Section: Journal Of Agricultural Studiesmentioning

confidence: 99%

Influence of Calcium Silicate on Soil Fertility and Corn Morphology

Fernandes¹,

Bitencourt

Theodoro

et al. 2020

JAS

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The objective of this study was to evaluate whether the development of corn (Zea mays) and soil fertility are influenced by the application of increasing doses of calcium silicate (CaSiO3) in substitution to limestone. The experiment was carried out under greenhouse conditions and the experimental design was in randomized blocks, in a 3x2+1 factorial arrangement and four replications. The factors were: doses of CaSiO3 (7.62 mg.dm-3, 19.05 mg.dm-3 and 38.09 mg.dm-3) and liming (absence and presence). The soil of the control treatment did not receive limestone or CaSiO3. At 21 days after emergence (DAE), it was found that the control treatment plants had significantly lower height and stem diameter. At 35 DAE was observed that using exclusively CaSiO3 promoted 6% higher stem height values. At 63 DAE, no oscillations were observed in the biomass of aerial part and root between liming and CaSiO3 doses (P>0.05). Using the limestone allied the silicate doses increased in higher concentration of Mg in the soil. The lowest dose of CaSiO3 reduced the concentrations of Ca and Mg. Calcium silicate can be used as an alternative source to limestone for soil acidity correction.

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Section: Journal Of Agricultural Studiesmentioning

confidence: 99%

Influence of Calcium Silicate on Soil Fertility and Corn Morphology

Fernandes¹,

Bitencourt

Theodoro

et al. 2020

JAS

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“…To this end, a multi-scale analysis was carried out to jointly explore the physicochemical evolution of the mix, its microstructure, and mechanical performances [15]. At a particle level, calcium-rich particles from fly ash constitute the reactive part of the mix.…”

Section: Unsaturated Soil Mechanics At the Interface With Low Carbon mentioning

confidence: 99%

TERRE project: interplay between unsaturated soil mechanics and low-carbon geotechnical engineering

et al. 2020

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The geotechnical construction industry is a major component of the overall construction sector and is strategically important in infrastructure development (transportation, flood and landslide protection, building foundations, waste disposal). Although industry and research in the overall construction sector have been investing significantly in recent years to produce innovative low-carbon technologies, little innovation has been created in geotechnical construction industry, which is lagging behind other construction industry sectors. This paper discusses the interplay between low-carbon geotechnical engineering and unsaturated soil mechanics based on the research carried out within the project TERRE (Marie Skłodowska-Curie Innovative Training Networks funded by the European Commission, 2015-2019,H2020-MSCA-ITN-2015-675762).

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“…As a burgeoning kind of environmental protection building material, soil stabilizer has obtained a series of research achievements in water conservancy, road engineering, and other areas in recent years [2][3][4][5][6]. Many scholars have explored the research, development, and application of different soil stabilizers.…”

Section: Introductionmentioning

confidence: 99%

Study on the Mechanism of Nano-SiO2 for Improving the Properties of Cement-Based Soil Stabilizer

et al. 2020

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A new nano-soil stabilizer (N-MBER, Nanometer Material Becoming Earth into Rock) material was developed in this research by using the high activity and ultrafine properties of nano-SiO2 (NS), which were able to improve the properties of cement-based soil stabilizer and had broad application prospects. The results showed that (1) the strength of N-MBER obeyed a compound function relation with curing period and additive amount of NS. The relationship between strength and curing period obeyed an exponential function when the additive amount was constant. The strength and additive amount were a power function when the curing period was fixed. The compressive strength of N-MBER increased by more than 15% compared with MBER at day 28 of the curing period, and 50% compared with grade 32.5 cement. (2) The pozzolanic catalytic activity of NS significantly increased the amount of calcium silicate hydrate gel (C–S–H) in the N-MBER colloid. NS was also able to make the distribution of the network structure of colloidal space more uniform and improved the fractal dimension of particles by 0.05. The above results provide theoretical data for exploring the mechanism of soil stabilizer strength growth and for promoting the application of solid waste utilization.

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Use of alkali activated high-calcium fly ash binder for kaolin clay soil stabilisation: Physicochemical evolution

Cited by 65 publications

References 35 publications

Influence of Calcium Silicate on Soil Fertility and Corn Morphology

Influence of Calcium Silicate on Soil Fertility and Corn Morphology

TERRE project: interplay between unsaturated soil mechanics and low-carbon geotechnical engineering

Study on the Mechanism of Nano-SiO2 for Improving the Properties of Cement-Based Soil Stabilizer

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