Results 31 to 40 of about 309,826 (311)

Analysis of Da’if & Mawdu’ Hadith in the Book of Ta’lim Al-Muta’allim by Shaykh Al-Zarnuji [PDF]

open access: yes, 2021
Ta’lim al-Muta’allim’s book by Sheikh al-Zarnuji is a turath book containing ethics and manners of learning and teaching between teachers and students. This book is famous and distributed in the Archipelago especially in Malaysia and Indonesia.
Ahmade, Norhafizah   +5 more
core  

Mechanical performance of glass-based geopolymer matrix composites reinforced with cellulose fibers [PDF]

open access: yes, 2018
Glass-based geopolymers, incorporating fly ash and borosilicate glass, were processed in conditions of high alkalinity (NaOH 10-13 M). Different formulations (fly ash and borosilicate in mixtures of 70-30 wt% and 30-70 wt%, respectively) and physical ...
Bernardo, Enrico   +2 more
core   +2 more sources

Delamination resistant composites by interleaving bio-based long-chain polyamide nanofibers through optimal control of fiber diameter and fiber morphology [PDF]

open access: yes, 2020
In this work an innovative electrospinning system is proposed that simultaneously has an adequate temperature resistance, a high increase in mode I (þ51%) and mode II (þ96%) delamination performance and can be commercially produced.
Daelemans, Lode   +5 more
core   +2 more sources

Mechanical Characteristics Based on the Microstructure Analysis of Cementitious Composites Incorporating Polypropylene Powder

open access: yesBuildings
Incorporating recycled plastics into construction materials offers environmental and economic benefits. This study examined the properties of cementitious composites incorporating recycled polypropylene (PP) powder to evaluate the feasibility of plastics
Jeonguk Mun   +3 more
doaj   +1 more source

Performance of High Strength Fiber Reinforced Mortar Made with Ceramic Powder, Metakaolin, and Magnetized Water

open access: yesInfrastructures
In recent years, there has been a notable concern about the production of cementitious composites due to its high cement consumption and the corresponding carbon footprint.
Osama Youssf   +3 more
doaj   +1 more source

ESTIMATION THE 7 AND 28- DAY NORMAL COMPRESSIVE STRENGTH BY ACCELERATED TEST METHODS IN CONCRETE

open access: yesJournal of Engineering, 2011
Curing of concrete is the maintenance of a satisfactory moisture content and temperature for a period of time immediately following placing so the desired properties are developed.
R.S. Al Rawi   +2 more
doaj   +1 more source

Preliminary investigation on auto-thermal extrusion of ground tire rubber [PDF]

open access: yes, 2019
Ground tire rubber (GTR) was processed using an auto-thermal extrusion as prerequisite to green reclaiming of GTR. The reclaimed GTR underwent a series of tests: thermogravimetric analysis combined with Fourier-transform infrared spectroscopy (TGA-FTIR),
Cañavate Ávila, Francisco Javier   +7 more
core   +2 more sources

A study on the influence of curing on the strength of a standard grade concrete mix [PDF]

open access: yes, 2010
Curing is essential if concrete is to perform the intended function over the design life of the structure while excessive curing time may lead to the escalation of the construction cost of the project and unnecessary delays.
Khan Azhar M.   +2 more
core   +1 more source

Water sorption of heat–cured acrylic resin [PDF]

open access: yesAl-Rafidain Dental Journal, 2007
Aims: To evaluate the effect of the different curing methods conventional water bath heat–curing and microwave energy curing method and different immersion periods on the water sorption and solubility of the different types of heat–cured acrylic resins.
Ammar Kh Al-Nori   +2 more
doaj   +1 more source

Cork-resin ablative insulation for complex surfaces and method for applying the same [PDF]

open access: yes, 1980
A method of applying cork-resin ablative insulation material to complex curved surfaces is disclosed. The material is prepared by mixing finely divided cork with a B-stage curable thermosetting resin, forming the resulting mixture into a block, B-stage ...
Sharpe, M. H.   +2 more
core   +1 more source

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