Results 1 to 10 of about 1,099,737 (318)

Design of Inorganic Polymer Composites for Electromagnetic Radiation Absorption Using Potassium Titanates [PDF]

open access: yesЖурнал інженерних наук, 2023
This paper investigated the synthesis of inorganic polymer composites for electromagnetic radiation absorption using potassium titanates. The selected polyamide 6 and potassium polytitanate materials contain TiО2, K2СО3, and KCl obtained by charge ...
Lebedev V. V.   +5 more
doaj   +1 more source

Eggshell as a fine aggregate replacer with silica fume and fly ash addition in concrete: A sustainable approach

open access: yesCase Studies in Construction Materials, 2023
The increasing demand for natural sand has proportionally influenced the industry for alternatives that can perform better in construction. Hence, this study was conducted to investigate the eggshell potential as a fine aggregate replacer in a concrete ...
Ibrahim Y. Hakeem   +3 more
doaj   +1 more source

Strength properties of Port Said soft clay stabilized by different binders [PDF]

open access: yesPort Said Engineering Research Journal, 2014
Due to the short history of the Deep Mixing Method (DMM) in Egyptthere is limited data on the improved properties of Port Said clay. In addition, there are enormous amounts of by-products from cement, marble and limestone industries that need to be ...
Kamal Sharoubim   +2 more
doaj   +1 more source

Using of Calcined Clay in soil subbase materials [PDF]

open access: yesJournal of Engineering Research - Egypt, 2018
The paper presents results of study on soil subbas improvement. The main object of the study was using the recycled calcined clay to get rid of it by a useful friendly environmental method. Big amount of waste refractory bricks were outcome with Portland
Kamal Sharobim   +2 more
doaj   +1 more source

Sustainable concrete with partial substitution of paper pulp ash: A review

open access: yesScience and Engineering of Composite Materials, 2023
The paper industry is one of the biggest sources of trash and stands out for its effects on both human health and ecological harmony. However, these waste could also help the building sector become more ecologically friendly.
Ahmad Jawad   +5 more
doaj   +1 more source

Modeling the service life of slag concrete exposed to chlorides

open access: yesAin Shams Engineering Journal, 2014
This paper focuses on the service life of slag concrete, where the time to corrosion initiation for a given chloride threshold value of 0.3% by mass of cement and different surface chloride concentrations (Cs), (1%, 3%, and 5%) was calculated using the ...
O.A. Hodhod, H.I. Ahmed
doaj   +1 more source

Study of the Morphological and Structural Features of Inert Matrices Based on ZrO2–CeO2 Doped with Y2O3 and the Effect of Grain Sizes on the Strength Properties of Ceramics

open access: yesMetals, 2022
This article is devoted to the study of the mechanical and strength properties of Y2O3-doped ZrO2–CeO2 composite ceramics. The choice of these ceramics is due to their prospects in the field of nuclear energy, structural materials and as the basis for ...
Artem L. Kozlovskiy   +2 more
doaj   +1 more source

The strength of the isomorphism property

open access: yesJournal of Symbolic Logic, 1994
AbstractIn § 1 of this paper, we characterize the isomorphism property of nonstandard universes in terms of the realization of some second-order types in model theory. In §2, several applications are given. One of the applications answers a question of D. Ross in [this Journal, vol. 55 (1990), pp. 1233–1242] about infinite Loeb measure spaces.
Renling Jin, Saharon Shelah
openaire   +2 more sources

Simulating USBR4908 by ANN

open access: yesHBRC Journal, 2013
One of the available tests that can be used to evaluate the sulfate resistance of concrete is a procedure for length change of hardened concrete exposed to alkali sulfates (USBR4908).
O.A. Hodhod, G. Salama
doaj   +1 more source

Hierarchical fiber bundle strength statistics [PDF]

open access: yes, 2012
Multi-scale modeling is currently one of the most active research topics in a wide range of disciplines. In this thesis we develop innovative hierarchical multi-scale models to analyze the probabilistic strength of fiber bundle structures.
Alsaeed Mahmoud Abdalrahman, Tamer
core   +1 more source

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