Journal Article10.1007/S12633-019-00308-0
Effects of Silica Fume on Workability and Compressive Strength Properties of Aluminosilicate Based Flowable Geopolymer Mortar under Ambient Curing
C. Jithendra,S. Elavenil +1 more
48
TL;DR: In this paper, the effects of silica fume on setting time, mortar flow and compressive strength properties of fly ash based flowable geopolymer mortar had been studied.
read more
Abstract: In this study, the effects of silica fume on setting time, mortar flow and compressive strength properties of fly ash based flowable geopolymer mortar had been studied. The aluminosilicate binder of 70% fly ash and 30% GGBFS with 2 M of sodium silicate solution (Na2SiO3) is considered as control mix. In the aluminosilicate binder, fly ash had been partially replaced with silica fume (0–30%). The test results indicate that the increase in silica fume up to 20% had shown increment in the geopolymer properties, due to the fine particle size and large surface area of the silica fume. The percentage of silica fume increases beyond 20% decrease in geopolymer properties but, still the mixes shown higher properties than control mix. Later, to improvise the fresh and strength properties, the mix containing 50% fly ash, 30% GGBFS and 20% silica fume is considered as aluminosilicate binder and examined with varying molarity of sodium silicate solution in the region of 1.5 < M < 2. However, the test results are significantly improved with decreasing the molarity of sodium silicate solution. The optimum level of 1.75 M of sodium silicate solution is considered in terms of setting time, mortar flow and compressive strength properties.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Properties of geopolymer sourced from construction and demolition waste: A review
TL;DR: In this paper , the authors reviewed the current state-of-the-art on the geopolymer paste, mortar, and concrete production and their properties, with special attention paid to geopolymers incorporating CDW.
163
Improvement in Fresh, Mechanical and Microstructural Properties of Fly Ash- Blast Furnace Slag Based Geopolymer Concrete By Addition of Nano and Micro Silica
Syed Mohammed Mustakim,Shaswat Kumar Das,Jyotirmoy Mishra,Asif Aftab,Thamer Alomayri,Hasan Assaedi,Cyriaque Rodrigue Kaze +6 more
TL;DR: In this paper, the effect of nano-silica and silica fume (SF) on workability, setting time, compressive strength and microstructural properties of fly ash-ground granulated blast furnace slag (FA-GGBFS) based geopolymer concrete (GPC) is investigated.
132
A Critical Review of Waste Glass Powder as an Aluminosilicate Source Material for Sustainable Geopolymer Concrete Production
P Manikandan,V. Vasugi +1 more
TL;DR: In this article, waste glass powder (WGP) is used as an aluminosilicate source material in binary, ternary and quaternary blended geopolymer concrete.
59
The mechanical, transport and chloride binding characteristics of ultra-high-performance concrete utilising seawater, sea sand and SCMs
TL;DR: In this article , the binding properties of seawater and sea sand-based ultra-high-performance concrete (SWSS-UHPC) with supplementary cementitious materials (SCM) (i.e., slag and silica fume) were investigated.
41
Experimental study on strength and microstructure of mortar in presence of micro and nano-silica
TL;DR: In this article, the authors investigated the strength and microstructure of the preferentially substituted cement mortars with incorporation of microsilica (MS), nanosilica (NS), and their combined use at 3, 7 and 28 days of curing.
40
References
Effect of GGBFS on setting, workability and early strength properties of fly ash geopolymer concrete cured in ambient condition
Pradip Nath,Prabir Kumar Sarker +1 more
TL;DR: In this paper, a fly ash-based geopolymer concrete for curing in ambient condition can be proportioned for desirable workability, setting time, and compressive strength using ground granulated blast-furnace slag (GGBFS) as a small part of the binder.
1.2K
Development and properties of low-calcium fly ash-based geopolymer concrete
Djwantoro Hardjito,B. V. Rangan +1 more
- 01 Jan 2005
TL;DR: The first part of the work carried out by the geopolymer research group at Curtin University of Technology as discussed by the authors describes the development and properties of heat-cured low-calcium fly ash-based concrete.
NaOH-activated ground fly ash geopolymer cured at ambient temperature
Kiatsuda Somna,Chai Jaturapitakkul,Puangrat Kajitvichyanukul,Puangrat Kajitvichyanukul,Prinya Chindaprasirt +4 more
TL;DR: In this paper, ground fly ash (GFA), with a median particle size of 10.5μm, was used as source material for making geopolymers cured at room temperature, and compressive strength tests and microstructure observations using SEM, EDX, XRD and FTIR were performed.
920
Alkali-activated fly ash/slag cements: Strength behaviour and hydration products
TL;DR: The activation of fly ash/slag pastes with NaOH solutions has been studied in this paper, where the authors established the equations of the models describing the mechanical behaviour of these pastes as a function of the factors and levels considered.
878
Fly Ash-Based Geopolymer Concrete
TL;DR: In this article, the fly ash-based geopolymer concrete is described and the material and the mixture proportions, the manufacturing process, and the influence of various parameters on the properties of fresh and hardened concrete.