Utilization of waste expanded perlite as new effective supplementary cementitious material

Kotwica, Łukasz; Pichór, Waldemar; Kapeluszna, Ewa; Różycka, Agnieszka

doi:10.1016/j.jclepro.2016.10.018

Cited by 83 publications

(34 citation statements)

References 16 publications

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“…Other BMs are rich in silica (Si) and alumina (Al), such as pulverised fuel ash (PFA), silica fume (SF), palm oil fuel ash (POFA) and rice husk ash (RHA) which react pozzolanically with the hydrated calcium compounds (Aprianti, 2017). Numerous research projects have been conducted to utilise BMs to replace a portion of cement in binders and then used in diverse construction projects such as concrete for buildings, rigid pavements and soil stabilisation (Kumar et al, 2007;Jaturapitakkul et al, 2011;Horpibulsuk et al, 2012;Kotwica et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Development of a new ternary blended cementitious binder produced from waste materials for use in soft soil stabilisation

Jafer

Atherton

Sadique

et al. 2018

Journal of Cleaner Production

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Soil stabilisation using traditional binders such as Ordinary Portland Cement (OPC), has a serious negative environmental impact, specifically carbon dioxide (CO 2) emissions as a result of the manufacture of OPC. Because of this, the use of sustainable binders has become a critical issue to help reduce cement production through the use of by-product materials. This research seeks to develop a new ternary blended cementitious binder (TBCB) to replace cement for soft soil stabilisation. Different ternary mixtures containing wastes i.e., high calcium fly ash (HCFA), palm oil fuel ash (POFA) and rice husk ash (RHA) along with flue gas desulphurisation (FGD) gypsum used as a sulphate activator and grinding agent, were examined. The results illustrate that ternary mixtures improved the engineering and mechanical properties of stabilised soil. The results indicated that the plasticity index (PI) was reduced ACCEPTED MANUSCRIPT from 20.2 to 13.0 and the unconfined compressive strength (UCS) increased after 28 days of curing from 202kPa to 944kPa using the optimum non-FGD activated mixture. FGD contributed significantly by increasing the UCS to 1464kPa at 180 days of curing, which surpassed that for the reference cement (1450kPa), and by improving the soil consistency limits; where the PI decreased to 11.7 using TBCB compared with 14.5 for the soil treated with the reference cement. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis revealed substantial changes in the diffraction patterns and microstructure components of the TBCB paste over the curing period, confirming the formation of cementitious products. A solid, coherent and compacted structure was achieved after treatment with TBCB as evidenced by the formation of C-S-H, CH and ettringite.

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Section: Introductionmentioning

confidence: 99%

Development of a new ternary blended cementitious binder produced from waste materials for use in soft soil stabilisation

Jafer

Atherton

Sadique

et al. 2018

Journal of Cleaner Production

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“…Alternative SCMs comprise rice husk [27][28][29], industrially processed clays [30,31], calcined clay-brick wastes [32][33][34][35], volcanic tuffs [36,37], pumices [20], modified reservoir sludge [38][39][40], waste expanded perlite [41] and more [42][43][44][45][46].…”

Section: B)mentioning

confidence: 99%

“…The laser diffraction method was used to determine the particle size distribution of the UGWM, CGWM (750°C, 850°C and 950°C) and OPC powders. A modular particle size analyser (HELOS-RODOS-VIBRI, Sympatec GmbH, Germany) was utilised to measure the powder samples by dry powder dispersion using Fraunhofer diffraction theory [41] to compute the PSD from the diffraction patterns.…”

Section: Characterisation Techniques Applied On the Primary Powders Amentioning

confidence: 99%

Gravel wash mud, a quarry waste material as supplementary cementitious material (SCM)

Thapa

Waldmann

Simon

2019

Cement and Concrete Research

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The suitability of gravel wash mud (GWM), a sludge waste from gravel quarrying, is examined for its use as a partial Ordinary Portland cement (OPC) clinker substitute. The gravel wash mud was dried, milled into a fine powder and calcined at 750°C, 850°C and 950°C. In this study, various characterisation methods including particle size distribution (PSD), X-ray fluorescence (XRF), X-ray diffraction (XRD) and the simultaneous thermal analysis (STA) were applied on the calcined GWM powders to determine the optimal calcination temperature. Over 200 specimens were prepared based on different cement paste and mortar mixes to investigate the potential of calcined GWM powders as SCMs. The pozzolanic activity of the GWM powders was verified by applying strength-based evaluation methods, simultaneous thermal analysis and SEM on hardened samples. Very promising strengthenhancing capacities were observed for samples containing GWM powders calcined at 850°C with a OPC replacement level of 20 wt.%.

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“…Expanded perlite is commonly used as lightweight filler; however, waste in the form of dust after additional grinding is characterised by exceptionally good pozzolanic properties. ose properties are connected with its amorphous structure, high content of silica, and veryhigh surface area, which is an effect of lamellar shape of grains after grinding [25]. Also, ground raw perlite has smaller but still good pozzolanic properties [26].…”

Section: Introductionmentioning

confidence: 99%

Lightweight Cement Mortars with Granulated Foam Glass and Waste Perlite Addition

Pichór

Kaminski²,

Szołdra

et al. 2019

Advances in Civil Engineering

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This article presents the influence of granulated foam glass (GFG) on thermal insulation and mechanical properties of lightweight cement mortars. The mortars were additionally modified with addition of ground perlite dust. Ground expanded perlite waste was introduced into the cement matrix in the amounts of 10%, 20%, and 30% of cement mass. The results show that application of this waste increases the strength of the mortars as well as decreases their thermal conductivity coefficient. A series of mortars were prepared with introduction of granulated foam glass with mass per unit filler/cement ratio equal to 0.6, 0.9, and 1.2. The aggregate composition of GFG was combined from different monofractions in the range 0–2 mm so that it filled the mortar volume to the maximum. Additionally, mortars were made, in which 20% of 0–0.25 mm GFG volume was replaced with quartz sand with the same granulation. Each mortar series was modified with addition of ground perlite waste in the amount of 20% of cement mass. The results indicate an improvement of thermal insulation properties along with greater participation of perlite in the mortars. The increase of the thermal conductivity coefficient was observed in the mortars, where the GFG was replaced with quartz sand. Greater amount of GFG results in decrease of compressive strength, but it can be improved by replacing part of the lightweight filler with sand or by introducing the addition of ground expanded perlite to the matrix. This also results in lower water absorption of mortars. Research proved that in most cases, the addition of ground expanded perlite decreased the capillary sorption of mortars, as well as the water absorption coefficient by capillary action, with growing proportion of the lightweight filler.

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Utilization of waste expanded perlite as new effective supplementary cementitious material

Cited by 83 publications

References 16 publications

Development of a new ternary blended cementitious binder produced from waste materials for use in soft soil stabilisation

Development of a new ternary blended cementitious binder produced from waste materials for use in soft soil stabilisation

Gravel wash mud, a quarry waste material as supplementary cementitious material (SCM)

Lightweight Cement Mortars with Granulated Foam Glass and Waste Perlite Addition

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