A mix design methodology of slag and fly ash-based alkali-activated paste

2021 ◽  
pp. 104368
Author(s):  
Beibei Sun ◽  
Yubo Sun ◽  
Guang Ye ◽  
Geert De Schutter
Keyword(s):  
Fly Ash ◽  
Design Methodology ◽  
Mix Design ◽  
Alkali Activated

scholarly journals A Mix Design Procedure for Alkali-Activated High-Calcium Fly Ash Concrete Cured at Ambient Temperature

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Tanakorn Phoo-ngernkham ◽  
Chattarika Phiangphimai ◽  
Nattapong Damrongwiriyanupap ◽  
Sakonwan Hanjitsuwan ◽  
Jaksada Thumrongvut ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Design Methodology ◽  
Design Procedure ◽  
Mix Design ◽  
Fly Ash Concrete ◽  
High Calcium ◽  
High Calcium Fly Ash ◽  
Alkaline Activator ◽  
Alkali Activated

This research focuses on developing a mix design methodology for alkali-activated high-calcium fly ash concrete (AAHFAC). High-calcium fly ash (FA) from the Mae Moh power plant in northern Thailand was used as a starting material. Sodium hydroxide and sodium silicate were used as alkaline activator solutions (AAS). Many parameters, namely, NaOH concentration, alkaline activator solution-to-fly ash (AAS/FA) ratio, and coarse aggregate size, were investigated. The 28-day compressive strength was tested to validate the mix design proposed. The mix design methodology of the proposed AAHFAC mixes was given step by step, and it was modified from ACI standards. Test results showed that the 28-day compressive strength of 15–35 MPa was obtained. After modifying mix design of the AAHFAC mixes by updating the AAS/FA ratio from laboratory experiments, it was found that they met the strength requirement.

Mix design of fly ash based alkali activated concrete

2022 ◽  
pp. 41-65
Author(s):  
Chamila Gunasekara ◽  
Weena Lokuge ◽  
David W. Law ◽  
Sujeeva Setunge
Keyword(s):  
Fly Ash ◽  
Mix Design ◽  
Alkali Activated Concrete ◽  
Alkali Activated

A mix design procedure for low calcium alkali activated fly ash-based concretes

2015 ◽  
Vol 79 ◽  
pp. 301-310 ◽  
Author(s):  
M. Talha Junaid ◽  
Obada Kayali ◽  
Amar Khennane ◽  
Jarvis Black
Keyword(s):  
Fly Ash ◽  
Design Procedure ◽  
Mix Design ◽  
Low Calcium ◽  
Alkali Activated

Mix Design of Hybrid High-Volume Fly Ash Alkali Activated Cement

2015 ◽  
Vol 1100 ◽  
pp. 36-43 ◽  
Author(s):  
Oleksandr Kovalchuk ◽  
Rostislav Drochytka ◽  
Pavel Krivenko
Keyword(s):  
Phase Composition ◽  
Fly Ash ◽  
Structure Formation ◽  
High Volume ◽  
Mix Design ◽  
Fly Ashes ◽  
Service Properties ◽  
High Volume Fly Ash ◽  
Alkali Activated ◽  
Alkali Activated Cement

Hybrid alkali activated cements based on fly ashes because of their structure and characteristics of phase composition are able to be used in different materials with the unique service properties. The paper is enclosing some specific features of hybrid fly ash alkali activated cement mix design and structure formation in order to achieve materials for different applications.

scholarly journals Mix Design and Mechanical Properties of Fly Ash and GGBFS-Synthesized Alkali-Activated Concrete (AAC)

2019 ◽  
Vol 4 (2) ◽  
pp. 20 ◽  
Author(s):  
Ramamohana Reddy Bellum ◽  
Ruben Nerella ◽  
Sri Rama Chand Madduru ◽  
Chandra Sekhar Reddy Indukuri
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Raw Materials ◽  
Construction Materials ◽  
Xrd Analysis ◽  
Mix Design ◽  
Geopolymer Concrete ◽  
Curing Conditions ◽  
Factors Affecting ◽  
Alkali Activated

Cement is one of the construction materials widely used around the world in order to develop infrastructure and it is also one of the factors affecting economies. The production of cement consumes a lot of raw materials like limestone, which releases CO2 into the atmosphere and thus leads to global warming. Many investigations are underway in this area, essentially focusing on the eco-accommodating environment. In the research, an alternative material to cement binder is geopolymer binder, with the same efficiency. This paper presents scanning electron microscope (SEM) and X-ray diffraction (XRD) analysis of factory byproducts (i.e., fly ash and ground granulated blast furnace slag (GGBFS)). The mix design process for the manufacture of alkali-activated geopolymer binders synthesized by fly ash and GGBFS is presented. The mechanical properties (compression, split tensile and flexural strength, bond strength) of geopolymer concrete at different mix proportions and at dissimilar curing conditions were also investigated. Geopolymer concrete synthesized with 30% fly ash and 70% GGBFS has better properties at 14 M of NaOH and cured in an oven for 24 h at 70 °C.

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