Results 81 to 90 of about 12,404 (205)

Direct Ink Writing of Geopolymer Composites Reinforced With Polypropylene Fibers

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 9, September 2026.
ABSTRACT Polypropylene fiber (PPf) reinforced geopolymer inks were systematically optimized for extrusion‐based additive manufacturing through regulation of ink composition, rheological parameters, nozzle size, and fiber content. The effects of polyethylene glycol (PEG) content and H2O to K2O ratio on printability were investigated.
Chuhui Qin, Paolo Colombo
wiley   +1 more source

Cracking Potential and Temperature Sensitivity of Metakaolin Concrete

open access: yes, 2016
Metakaolin is a pozzolanic material with the potential to reduce permeability and chloride ingress; however, quantification of the effects of metakaolin use on the cracking sensitivity of concrete mixtures is needed to ensure that these improvements in ...
Williams, Andrew Robert
core  

Effects of adding Bauxite and Oyster shell on the properties of metakaolin-based geopolymer cements [PDF]

open access: yes, 2013
This work has investigated the possibility of use bauxite and oyster shell as mineral admixtures,to enhance the properties of metakaolin-based geopolymer cements. Raw materials(metakaolin, bauxite and oyster shell) were characterized in the first time by
Kengne, Enselme
core  

Characterization and Fabrication of Metakaolin using Pulau Bangka Kaolin

open access: yesE3S Web of Conferences, 2018
Geopolymer material is an advanced material that is now being looked for its use as a refractory material, additive for building material, as well as other applications. Geopolymer is produced by polymerizing the precursor used in the process. One of the
Astutiningsih Sotya   +2 more
doaj   +1 more source

Metakaolin as an Additive in Composite Cement [PDF]

open access: yes, 2012
Metakaolin made from kaolin is used around the world but rarely in Vietnam where abundant deposits of kaolin is found. The first studies of producing metakaolin were conducted with high quality Vietnamese kaolins.
Phung Thi, Thu Ha (Dr.-Ing.)   +1 more
core   +1 more source

The influence of the fineness of metakaolin on the properties of self-compacting underwater concrete

open access: yesBudownictwo i Architektura, 2014
The paper presents the research results of the influence of metakaolin of different fineness that is applied as a microfiller (20% of the cement mass) on the properties of self-compacting underwater concrete.
Stefania Grzeszczyk, Krystian Jurowski
doaj   +1 more source

Metakaolin as a pozzolan for high-performance mortar = Metakaolin jako dodatek pucolanowy modyfikuja{ogonek}cy właściwości zapraw

open access: yes, 2012
Cement mortars were produced in which 10% of Portland cement was replaced by metakaolin. The physical properties i.e. shrinkage and mechanical strength of the mortar were studied. The results show that the metakaolin slows cement hydration, decreases the
Mansour, M.S.   +3 more
core   +1 more source

Effect of Eggshell Powder on Sulfate Resistance of Metakaolin Cement-based Materials

open access: yesTaiyuan Ligong Daxue xuebao
Purposes This work has been carried out to determine the optimal composite mix ratio of eggshell powder and metakaolin as cement replacement materials for simultaneously enhancing the compressive strength of cement mortar and the sulfate resistance of ...
HU Chunhua, MA Teng
doaj   +1 more source

Alkali-silica reaction in waterglass-activated slag mortars incorporating fly ash and metakaolin

open access: yes, 2018
Mitigation of alkali-silica reaction (ASR) in concrete is essential for durable and sustainable constructions. In conventional Portland cement-based concrete, alumina-rich supplementary cementitious materials such as low-calcium fly ash and metakaolin ...
Zhang, Zuhua   +16 more
core   +1 more source

STUDY OF HYDRATION PRODUCTS IN THE MODEL SYSTEMS METAKAOLIN-LIME AND METAKAOLIN-LIME-GYPSUM

open access: yesCeramics-Silikáty, 2015
Possible preferential formation of ettringite instead of required calcium silicate hydrate (CSH) and calcium aluminosilicate hydrate (CASH) phases when aluminosilicates were added to the blended cements was investigated on the model systems comprising of metakaolin, lime and gypsum.
Matus Zemlicka   +4 more
openaire   +1 more source

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