Direct Ink Writing of Geopolymer Composites Reinforced With Polypropylene Fibers
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
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]
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
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]
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
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
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
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
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
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

