[8] PROVIS J L, BERNAL S A. Geopolymers and related alkali-activated materials[J]. Annual Review of Materials Research, 2014, 44: 299-327.
[9] PROVIS J L, JANNIE S J. Alkali activated materials[M]. Springer Nature B. V. , 2014.
[10] ROY D, LANGTON C. Studies of ancient concrete as analogs of cementitious sealing materials for a repository in tuff[R]. Los Alamos National Lab. (LANL), Los Alamos, NM (United States), 1989.
[11] SIVAPULLAIAH P V, PRASHANTH J P, SRIDHARAN A, et al. Technical note reactive silica and strength of fly ashes[J]. Geotechnical & Geological Engineering, 1998, 16(3): 239-250.
[12] SHIRAZI H. Field and laboratory evaluation of the use of lime fly ash to replace soil cement as a base course[J]. Transportation Research Record: Journal of the Transportation Research Board, 1999, 1652(1): 270-275.
[13] MILLER G A, ZAMAN M. Field and laboratory evaluation of cement kiln dust as a soil stabilizer[J]. Transportation Research Record: Journal of the Transportation Research Board, 2000, 1714(1): 25-32.
[14] NALBANTOGLU Z, GUCBILMEZ E. Improvement of calcareous expansive soils in semi-arid environments[J]. Journal of Arid Environments, 2001, 47(4): 453-463.
[15] KAMON M, GU H D, MASAHIRO I. Improvement of mechanical properties of ferrum lime stabilized soil with the addition of aluminum sludge[J]. Journal of the Society of Materials Science, Japan, 2001, 50(3): 47-53.
[21] ZHANG M, GUO H, EL-KORCHI T, et al. Experimental feasibility study of geopolymer as the next-generation soil stabilizer[J]. Construction and Building Materials, 2013, 47: 1468-1478.
[25] GRANIZO M L, ALONSO S, BLANCO-VARELA M T, et al. Alkaline activation of metakaolin: effect of calcium hydroxide in the products of reaction[J]. Journal of the American Ceramic Society, 2004, 85(1): 225-231.
[26] LECOMTE I, LIGEOIS M, RULMONT A, et al. Synthesis and characterization of new inorganic polymeric composites based on Kaolin or white clay and on ground-granulated blast furnace slag[J]. Journal of Materials Research, 2003, 18(11): 2571-2579.
[27] BARBOSA V F F, MACKENZIE K J D, THAUMATURGO C. Synthesis and characterisation of materials based on inorganic polymers of alumina and silica: sodium polysialate polymers[J]. International Journal of Inorganic Materials, 2000, 2(4): 309-317.
[28] PALOMO A, GRUTZECK M W, BLANCO M T. Alkali-activated fly ashes[J]. Cement and Concrete Research, 1999, 29(8): 1323-1329.
[29] VAN JAARSVELD J G S, VAN DEVENTER J S J, LUKEY G C. The characterisation of source materials in fly ash-based geopolymers[J]. Materials Letters, 2003, 57(7): 1272-1280.
[31] AMER I, KOHAIL M, EL-FEKY M S, et al. A review on alkali-activated slag concrete[J]. Ain Shams Engineering Journal, 2021, 12(2): 1475-1499.
[32] WANG S D. Alkaline activation of slag[J]. Immunology, 1995, 122(3): 306-315.
[33] PUERTAS F, FERNNDEZ-JIMNEZ A, BLANCO-VARELA M T. Pore solution in alkali-activated slag cement pastes. Relation to the composition and structure of calcium silicate hydrate[J]. Cement and Concrete Research, 2004, 34(1): 139-148.
[34] YAO J L, QIU H J, HE H, et al. Application of a soft soil stabilized by composite geopolymer[J]. Journal of Performance of Constructed Facilities, 2021, 35(4): 04021018.
[35] PARTHIBAN D, VIJAYAN D S, KODA E, et al. Role of industrial based precursors in the stabilization of weak soils with geopolymer: a review[J]. Case Studies in Construction Materials, 2022, 16: e00886.
[37] CRISTELO N, GLENDINNING S, TEIXEIRA PINTO A. Deep soft soil improvement by alkaline activation[J]. Proceedings of the Institution of Civil Engineers-Ground Improvement, 2011, 164(2): 73-82.
[38] CRISTELO N, GLENDINNING S, MIRANDA T, et al. Soil stabilisation using alkaline activation of fly ash for self compacting rammed earth construction[J]. Construction and Building Materials, 2012, 36: 727-735.
[39] CRISTELO N, GLENDINNING S, FERNANDES L, et al. Effects of alkaline-activated fly ash and Portland cement on soft soil stabilisation[J]. Acta Geotechnica, 2013, 8(4): 395-405.
[40] YI Y L, LI C, LIU S Y. Alkali-activated ground-granulated blast furnace slag for stabilization of marine soft clay[J]. Journal of Materials in Civil Engineering, 2015, 27(4): 04014146.
[41] SARGENT P, HUGHES P N, ROUAINIA M. A new low carbon cementitious binder for stabilising weak ground conditions through deep soil mixing[J]. Soils and Foundations, 2016, 56(6): 1021-1034.
[45] PHETCHUAY C, HORPIBULSUK S, ARULRAJAH A, et al. Strength development in soft marine clay stabilized by fly ash and calcium carbide residue based geopolymer[J]. Applied Clay Science, 2016, 127/128: 134-142.
[48] CHOWDARY B, RAMANAMURTY V, PILLAI R J. Fiber reinforced geopolymer treated soft clay-an innovative and sustainable alternative for soil stabilization[J]. Materials Today: Proceedings, 2020, 32: 777-781.
[49] YI Y, LISKA M, AL-TABBAA, et al. Initial investigation into the use of GGBS-MgO in soil stabilisation[C]//Proceedings of the Fourth International Conference on Grouting and Deep Mixing, 2012: 444-453.
[51] WALKLEY B, SAN NICOLAS R, SANI M A, et al. Phase evolution of C-(N)-A-S-H/N-A-S-H gel blends investigated via alkali-activation of synthetic calcium aluminosilicate precursors[J]. Cement and Concrete Research, 2016, 89: 120-135.
[54] ABDULLAH H H, SHAHIN M A, SARKER P. Use of fly-ash geopolymer incorporating ground granulated slag for stabilisation of Kaolin clay cured at ambient temperature[J]. Geotechnical and Geological Engineering, 2019, 37(2): 721-740.
[58] XING H F, XIONG F, ZHOU F. Improvement for the strength of salt-rich soft soil reinforced by cement[J]. Marine Georesources & Geotechnology, 2018, 36(1): 38-42.
[63] KHADKA S D, JAYAWICKRAMA P W, SENADHEERA S, et al. Stabilization of highly expansive soils containing sulfate using metakaolin and fly ash based geopolymer modified with lime and gypsum[J]. Transportation Geotechnics, 2020, 23: 100327.
[66] LI Y Y, ZHANG T T, JIA S B, et al. Mechanical properties and leaching characteristics of geopolymer-solidified/stabilized lead-contaminated soil[J]. Advances in Civil Engineering, 2019: 1-8.
[67] COLLINS F, SANJAYAN J G. Microcracking and strength development of alkali activated slag concrete[J]. Cement and Concrete Composites, 2001, 23(4/5): 345-352.