Mechanical Properties and Microstructure of a Metakaolin-Based Inorganic Polymer Mortar Reinforced with Quartz Sand

Crystalline admixtures and industrial by-products can be used in cement-based materials in order to improve their mechanical properties. The research examined long-term curing and the exposure to environmental actions of polymer–cement mortars with crystalline admixture (CA) and different by-products, including Bengħisa fly ash and Globigerina limestone waste filler. The by-products were introduced as a percentage replacement of the cement. A crystallization additive was also added to the mixtures in order to monitor the improvement in durability properties. The mechanical properties of the mortar were assessed, with 20% replacement of cement with fly ash resulting in the highest compressive strength after 540 days. The performance was analyzed with respect to various properties including permeable porosity, capillary suction, rapid chloride ion penetration and chloride migration coefficient. It was noted that the addition of fly ash and crystalline admixture significantly reduced the chloride ion penetration into the structure of the polymer cement mortar, resulting in improved durability. A microstructure investigation was conducted on the samples through Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDS). Crystals forming through the crystalline admixture in the porous structure of the material were clearly observed, contributing to the improved properties of the cement-based polymer mortar.

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Feasibility Study on Composition and Mechanical Properties of Marine Clay Based Geopolymer Brick

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.594-595.401 ◽

2013 ◽

Vol 594-595 ◽

pp. 401-405

Author(s):

S.M. Tamizi ◽

Abdullah Mohd Mustafa Al Bakri ◽

Hussin Kamarudin ◽

C.M. Ruzaidi ◽

J. Liyana ◽

...

Keyword(s):

Mechanical Properties ◽

Experimental Study ◽

Compressive Strength ◽

Feasibility Study ◽

Inorganic Polymer ◽

Synthesis Process ◽

Local Production ◽

Marine Clay ◽

X Ray ◽

Alkaline Activator

Geopolymer is an inorganic polymer performed in synthesis process of an aluminosilicate material which activated by alkaline activator solution. Marine clay, considered to be a waste substance which have an important aluminosilicate sources in developing geopolymer synthesis since it contains sufficient amounts of alumina and silica. In this experimental study, local marine clay composition was been identified to determine the amount of alumina and silica. The raw sample compositions were identified by using X-ray fluorescence (XRF). Incorporated with it composition, compressive strength of brick were been tested in aged of 1, 2 and 3 day and compared with local production of cement brick (CB). This research is aimed at determining the properties of Kuala Perlis marine clay in order to verify its suitability as a pozzolana materials as well as the sufficient amount of Al and Si to enhance the properties of geopolymer brick.

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Metakaolin-based inorganic polymer composite: Effects of fine aggregate composition and structure on porosity evolution, microstructure and mechanical properties

Cement and Concrete Composites ◽

10.1016/j.cemconcomp.2014.07.008 ◽

2014 ◽

Vol 53 ◽

pp. 258-269 ◽

Cited By ~ 25

Author(s):

Elie Kamseu ◽

Maria Cannio ◽

Esther A. Obonyo ◽

Fey Tobias ◽

Maria Chiara Bignozzi ◽

...

Keyword(s):

Mechanical Properties ◽

Polymer Composite ◽

Inorganic Polymer ◽

Fine Aggregate ◽

Porosity Evolution ◽

Microstructure And Mechanical Properties ◽

Composition And Structure ◽

Aggregate Composition

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The effect of filler parameters on the healing of thermal conductivity and mechanical properties of a thermal interface material based on a self-healable organic–inorganic polymer matrix

Smart Materials and Structures ◽

10.1088/0964-1726/25/8/084016 ◽

2016 ◽

Vol 25 (8) ◽

pp. 084016 ◽

Cited By ~ 4

Author(s):

Nan Zhong ◽

Santiago J Garcia ◽

Sybrand van der Zwaag

Keyword(s):

Mechanical Properties ◽

Thermal Conductivity ◽

Polymer Matrix ◽

Thermal Interface Material ◽

Inorganic Polymer ◽

Thermal Interface

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Lime based Dry Mixes with Carbonate Aggregates

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.i7895.0981119 ◽

2019 ◽

Vol 8 (11) ◽

pp. 3289-3292 ◽

Cited By ~ 1

Keyword(s):

Mechanical Properties ◽

Quartz Sand ◽

Carbonate Rocks ◽

Physical And Mechanical Properties ◽

Lime Mortar ◽

Fine Aggregates ◽

Lime Mortars ◽

The Matrix ◽

Optimal Values ◽

Quarry Dust

The use of carbonate rocks as aggregates for cement concretes and mortars is limited due to their insufficient strength and the threat of corrosion. The use of quarry dust from crushing carbonate rocks are technically and economically feasible in building compositions based on air-hardening lime. The results of the study of the effect of replacing a part of quartz sand in lime mortar by limestone and dolomite fine aggregates on the basic physical and mechanical properties of lime mortars for restoration are presented in the paper. The matrix of planning experiments, which allows increasing the informativity of the research results in order to reduce the number of experiments in the search for optimal values, is proposed. The efficiency of replacement of the quartz sand with quarry dust of carbonate rocks in the production of dry mixes for restoration is shown.

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Recycled PET Sand for Cementitious Mortar

Materials ◽

10.3390/ma15010273 ◽

2021 ◽

Vol 15 (1) ◽

pp. 273

Author(s):

Angélica Faria Campanhão ◽

Markssuel Teixeira Marvila ◽

Afonso R. G. de Azevedo ◽

Tulane Rodrigues da Silva ◽

Roman Fediuk ◽

...

Keyword(s):

Mechanical Properties ◽

Mineral Resource ◽

Sustainable Development ◽

Compressive Strength ◽

Quartz Sand ◽

Mineral Resources ◽

Cementitious Materials ◽

Recycled Pet ◽

Fresh State ◽

Hardened State

Cementitious materials cause a great impact on the environment due to the calcination of clinker and the extraction of non-renewable mineral resources. In this work, the replacement of quartz sand from the river by PET sand was evaluated at levels of 10%, 20%, and 30%. Tests were performed in the fresh state through consistency, air retention, density, and incorporated air and in the hardened state for compressive strength, flexural strength, density, capillarity, and water absorption. The results show that PET sand is viable in contents of up to 10%, improving the mechanical properties of the mortar and without compromising its workability and incorporated air properties. Above that level, the loss of properties is very excessive, mainly of workability and incorporated air. The incorporated air of the 30% composition, for example, reaches 24%, an excessive value that impacts the properties of the hardened state, making it impossible to use the material at levels greater than 20%. It is concluded that the use of recycled PET sand is a possibility that contributes to sustainable development, as it reduces the extraction of quartz sand from the river, a non-renewable mineral resource.

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