Results 71 to 80 of about 17,046 (230)

Factors Affecting the Setting Time of Fly Ash-Based Geopolymer [PDF]

, 2015
Fly ash is a waste from coal burning, that are generated with fluctuation both in its physical and chemical characteristics. This characteristics of fly ash when used in the making of geopolymer concrete will greatly affect the final products obtained ...
Antoni,, Hardjito, Djwantoro, WIJAYA, STEPHEN WIBIATMA   +2 more
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Leaching of F-type fly Ash Based Geopolymers

Procedia Engineering, 2012
AbstractGeopolymers are the synthetic analogues of natural zeolitic materials. Geopolymeric materials possess excellent mechanical properties, including fire and acid resistance. These properties make geopolymers an alternative construction material compared to Portland cement.
Arıöz, E., Arıöz, Ömer, Koçkar, Ömer Mete   +2 more
openaire   +2 more sources

Hybrid NDT‐Machine Learning Framework With SHAP‐Based Interpretation for Predicting Compressive Strength of Steel Slag Concrete

Engineering Reports, Volume 8, Issue 4, April 2026.
This study proposes a hybrid non‐destructive testing (NDT) and machine learning framework to predict the compressive strength of steel slag concrete. The integration of UPV, Rebound Hammer, and mixture parameters with interpretable ANN modeling enables accurate, sustainable, and explainable strength assessment for in situ concrete evaluation.
Matiur Rahman Raju, M. Tamim Parvez Tapu, Hasib Ahmed, Syed Ishtiaq Ahmad, Md. Mehedi Hasan, Md. Shahrior Alam, Mohammed Salauddin, Md. Shafiqur Rahman, Saif Ahmed Santo   +8 more
wiley   +1 more source

Factors influencing strength and setting time of fly ash based-geopolymer paste

MATEC Web of Conferences, 2017
In general, fly ash is often used as a binder in geopolymer mixture. In this paper, seven samples of fly ash were collected from five Indonesian power plants. The variation of fly ash may depend upon many factors.
Leonard Wijaya Adhitya, Jaya Ekaputri Januarti, Triwulan   +2 more
doaj   +1 more source

An Ensemble Machine Learning Method for Alkali‐Activated Concrete Mix Ratio Analysis and Optimizing Experimental Results

Engineering Reports, Volume 8, Issue 3, March 2026.
In this study, we discovered a combined learning algorithm of MLP–RF for predicting the composition of concrete and achieved favorable results in the inversion experiment. ABSTRACT In the field of civil engineering, the analysis of the composition of alkali‐sprayed concrete is of great significance for material research. However, there are currently no
Chengyuan Dai, Weiyu Li, Jiamin Lu, Yuelong Luo, Qizhou Liu, Lianxin Chen   +5 more
wiley   +1 more source

Literature Study Analysis of the Development of Fly Ash-Based Geopolymer Concrete on Strenght and Durability

Jurnal Teknik Sipil
Geopolymer concrete is a type of concrete that utilizes waste materials as a substitute for Portland cement. One of the most commonly used waste materials in geopolymer concrete is class F fly ash.
Henry Jonathan, Anang Kristianto
doaj   +1 more source

Contribution of Fineness Level of Fly Ash to the Compressive Strength of Geopolymer Mortar

MATEC Web of Conferences, 2017
The development of geopolymers has allowed the flash as the substitution of cement in the application of concrete. Therefore, this will be very useful considering the quite abundant by-product materials from power plants burning coal in South Sumatera ...
Firdaus, Yunus Ishak, Rosidawani
doaj   +1 more source

Experimental Investigation on Compressive Strength Enhancement of Geopolymer Paste Fly Ash/ Slag Based Cured at Ambient Condition

Diyala Journal of Engineering Sciences, 2020
In this paper, the effects of ground granulated blast furnace slag (GGBFS) content proportion on the development of compressive strength of geopolymer pastes were studied.
Wrood H. Sachet , Wissam D. Salman, Safie Mahdi Oleiwi, Dia Eddin Nassani   +3 more
doaj   +1 more source

Circular Alkali‐Activated Cements Based on EAF Slags and Biomass Bottom Ash Using Rice Husk Ash–Derived Sodium Silicate

Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
ABSTRACT This study investigates sodium silicate (SS) solutions derived from rice husk ash (RHA) dissolved in 8 M NaOH as sustainable activators for alkali‐activated cements (AACs), compared with commercial SS. AACs were produced using a 50:50 blend of electric arc furnace slag (EAFS) and biomass bottom ash (BA). The effects of NaOH/RHA ratio (6.6–2.8)
A. Muñoz‐Castillo, S. Bueno‐Rodríguez, D. Eliche‐Quesada   +2 more
wiley   +1 more source

Characterization of LUSI Mud as Geopolymer Raw Material [PDF]

, 2012
The mud of mud volcano samples were collected from an eruption site named ‘LUSI’ (Lumpur “mud” –Sidoarjo), East Java, Indonesia for characterization. Analysis showed that, the major constituents of mud are SiO2 and Al2O3 which are higher than those in ...
Hardjito, D., Kamarudin, H., Khairul Nizar, I,, Mustafa Al Bakri, A. M., Rafiza, A.R.   +4 more
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