Mechanism development of strength contributed by CPB with rice husk ash

Abstract

Rice husk ash (RHA) is currently utilized as a supplementary cementitious material in cement products due to its pozzolanic properties. This study aims to investigate the pozzolanic effect (PE) and filler effect (FE) of RHA on the mechanical properties and microstructure of cemented paste backfill (CPB). The effects of RHA content, cement-to-tailings ratio, and mass concentration on the unconfined compressive strength (UCS) of the CPB were investigated. The proportion of UCS that could be attributed to the PE was 67.30%–87.92% higher than the FE in CPB with RHA contents ranging from 10% to 20%. The FE of RHA exerted stronger influence at lower curing times, but the PE played more crucial roles at curing times of more than 3 d. These results provide new insights into the potential use of RHA as a cementitious material for use in backfilling during mining operations.

Keywords

cemented paste backfill / rice husk ash / unconfined compressive strength / pozzolanic effect / filler effect

References

[1] WangY-m, ChenQ-s, DaiB-b, et al. . Guidance and review: Advancing mining technology for enhanced production and supply of strategic minerals in China. Green and Smart Mining Engineering, 2024, 1(1): 2-11 J]

[2] JiangN, WangC-x, PanH-y, et al. . Modeling study on the influence of the strip filling mining sequence on mining-induced failure. Energy Science and Engineering, 2020, 8(6): 2239-2255 J]

[3] LiuH-y, ZhangB-y, LiX-l, et al. . Research on roof damage mechanism and control technology of gob-side entry retaining under close distance gob. Engineering Failure Analysis, 2022, 138: 106331 J]

[4] ChenQ-s, WangP-s, WangY-m, et al. . Fluorides immobilization through calcium aluminate cement-based backfill: Accessing the detailed leaching characterization under torrential rainfall. Environmental Research, 2023, 238(2): 117229 J]

[5] ZhangQ-l, LiY-t, ChenQ-s, et al. . Effects of temperatures and pH values on rheological properties of cemented paste backfill. Journal of Central South University, 2021, 2861707-1723 J]

[6] XueG-l, YilmazE, SongW-d, et al. . Mechanical, flexural and microstructural properties of cement-tailings matrix composites: Effects of fiber type and dosage. Composites Part B-Engineering, 2019, 172131-142 J]

[7] WangJ, FuJ-x, SongW-d, et al. . Mechanical properties, damage evolution, and constitutive model of rock-encased backfill under uniaxial compression. Construction and Building Materials, 2021, 285: 122898 J]

[8] ChengH-g, HuJ-j, HuC, et al. . Strength prediction of paste filling material based on convolutional neural network. Computationa Intelligence, 2021, 37(3): 1355-1366 J]

[9] WeiY, SandenberghR F. Effects of grinding environment on the flotation of Rosh Pinah complex Pb/Zn ore. Minerals Engineering, 2007, 20(3): 264-272 J]

[10] ChenF-b, LiuJ-g, ZhangX-w, et al. . Review on the art of roof contacting in cemented waste backfill technology in a metal mine. Minerals, 2022, 12(6): 721 J]

[11] LIU Yi-kai, WANG Yun-min, CHEN Qiu-song. Using cemented paste backfill to tackle the phosphogypsum stockpile in China: A down-to-earth technology with new vitalities in pollutants retention and CO₂ abatement [J]. International Journal Minerals Metallurgy and Materials, 2024. DOI: https://doi.org/10.1007/s12613-023-2799-y.

[12] DingH-x, ZhangS-yu. Quicklime and calcium sulfoaluminate cement used as mineral accelerators to improve the properties of cemented paste backfill with a high volume of fly ash. Materials, 2020, 13184018 J]

[13] XuW-b, ChenW, TianM-m, et al. . Effect of temperature on time-dependent rheological and compressive strength of fresh cemented paste backfill containing flocculants. Construction and Building Materials, 2021, 267121038 J]

[14] WangJ, FuJ-x, SongW-d, et al. . Viscosity and strength properties of cemented tailings backfill with fly ash and its strength predicted. Minerals, 2021, 11178 J]

[15] ChenQ-s, ZhuL-m, WangY-m, et al. . The carbon uptake and mechanical property of cemented paste backfill carbonation curing for low concentration of CO₂. Science of the Total Environment, 2022, 852158516 J]

[16] ZhaoX-h, LiuC-y, ZuoL-m, et al. . Synthesis and characterization of fly ash geopolymer paste for goaf backfill: Reuse of soda residue. Journal of Cleaner Production, 2020, 260121045 J]

[17] ShiX-l, WangX-l, WangX-ling. Dual waste utilization in cemented paste backfill using steel slag and mine tailings and the heavy metals immobilization effects. Powder Technology, 2022, 403117413 J]

[18] ZhangJ-c, WenX-h, ChengF-qin. Preparation, thermal stability and mechanical properties of inorganic continuous fibers produced from fly ash and magnesium slag. Waste Management, 2021, 120156-163 J]

[19] PeyronnardO, BenzaazouaM. Alternative byproduct based binders for cemented mine backfill: Recipes optimisation using Taguchi method. Minerals Engineering, 2012, 2928-38 J]

[20] ZhangZ-h, LiY-h, RenL, et al. . Evaluation of rheological parameters of slag-based paste backfill with superplasticizer. Advances in Materials Science and Engineering, 2021, 2021: 6673033[J]

[21] SolismaaS, TorppaA, KuvaJ, et al. . Substitution of cement with granulated blast furnace slag in cemented paste backfill: Evaluation of technical and chemical properties. Materials, 2021, 11(10): 1068[J]

[22] TuyluS. Investigation of the effect of using different fly ash on the mechanical properties in cemented paste backfill. Journal of Wuhan University of Technology – Material Science Edition, 2022, 374620-627 J]

[23] ChenQ-s, SunS-y, WangY-m, et al. . Insitu remediation of phosphogypsum in a cement-free pathway: Utilization of ground granulated blast furnace slag and NaOH pretreatment. Chemosphere, 2022, 313137412 J]

[24] WangD-l, ZhangQ-l, FengY, et al. . Hydration and mechanical properties of blended cement with copper slag pretreated by thermochemical modification. Materials, 2022, 15(10): 3477 J]

[25] ZaetangY, VanchaiS, AmpolW, et al. . Properties of pervious concrete containing recycled concrete block aggregate and recycled concrete aggregate. Construction and Building Materials, 2016, 11115-21 J]

[26] ChenQ-s, ZhouH-l, WangY-m, et al. . Erosion wear at the bend of pipe during tailings slurry transportation: Numerical study considering inlet velocity, particle size and bend angle. International Journal of Minerals Metallurgy and Materials, 2023, 30(8): 1608-1620 J]

[27] ZieglerD, BoschettoF, MarinE, et al. . Rice husk ash as a new humidity sensing material and its aging behavior. Sensors and Actuators B-Chemical, 2021, 328129049 J]

[28] PhulpotoK B, JhatialA A, MemonM J, et al. . Effect of polyproplyene fibre on the strength of concrete incorporating rice hush ash. Journal of Applied Engineering Sciences, 2020, 10(1): 69-74 J]

[29] AjiweV, OkekeC A, AkigweF C. A preliminary study of manufacture of cement from rice husk ash. Bioresource Technology, 2000, 73(1): 37-39 J]

[30] JittinV, MinnuS U, BahurudeenA. Potential of sugarcane bagasse ash as supplementary cementitious material and comparison with currently used rice husk ash. Construction and Building Materials, 2021, 273121679 J]

[31] VigneshwariM, ArunachalamK, AngayarkanniA. Replacement of silica fume with thermally treated rice husk ash in reactive powder concrete. Journal of Cleaner Production, 2018, 188264-277 J]

[32] Al-KhalafM N, YousifH A. Use of rice husk ash in concrete. International Journal of Cement Composites and Lightweight Concrete, 1984, 6(4): 241-248 J]

[33] WangJ, FuJ-x, SongW-d, et al. . Effect of rice husk ash (RHA) dosage on pore structural and mechanical properties of cemented paste backfill. Journal of Materials Research and Technology, 2022, 17: 840-851 J]

[34] DetwilerR, MehtaK. Chemical and physical effects of silica fume on the mechanical behavior of concrete. Materials Journal, 1989, 86(6): 609-614[J]

[35] GemmaR D S. Strength development of concrete with rice-husk ash. Cement and Concrete Composites, 2006, 28(2): 158-160 J]

[36] KarimM R, ZainM F M, JamilM, et al. . Fabrication of a non-cement binder using slag, palm oil fuel ash and rice husk ash with sodium hydroxide. Construction and Building Materials, 2013, 49: 894-902 J]

[37] NoamanA, KarimR, IslamN. Comparative study of pozzolanic and filler effect of rice husk ash on the mechanical properties and microstructure of brick aggregate concrete. Heliyon, 2019, 5(6): e01926 J]

[38] JamilM, KhanM N, KarimM R, et al. . Physical and chemical contributions of rice husk ash on the properties of mortar. Construction and Building Materials, 2016, 128185-198 J]

[39] NoamanA, NazrulI, RakibulI, et al. . Mechanical properties of brick aggregate concrete containing rice husk ash as a partial replacement of cement. Journal of Materials in Civil Engineering, 2018, 30604018086 J]

[40] ZhaoW-h, JiC-y, SunQ, et al. . Preparation and microstructure of alkali-activated rice husk ash-granulated blast furnace slag tailing composite cemented paste backfill. Materials, 2022, 15134397 J]

[41] FontA, SorianoL, SayonaraM D M P, et al. . Design and properties of 100% waste-based ternary alkaliactivated mortars: Blast furnace slag, olive-stone biomass ash and rice husk ash. Journal of Cleaner Production, 2020, 24320193907483195 J]