Results 41 to 50 of about 38,317 (293)

An Investigation of the Mechanical and Physical Characteristics of Cement Paste Incorporating Different Air Entraining Agents using X-ray Micro-Computed Tomography [PDF]

open access: yes, 2020
Improving the thermal insulation properties of cement-based materials is the key to reducing energy loss and consumption in buildings. Lightweight cement-based composites can be used efficiently for this purpose, as a structural material with load ...
Abd Elrahman, Mohamed   +5 more
core   +1 more source

Sustainable Green Lightweight Concrete Containing Plastic-Based Green Lightweight Aggregate [PDF]

open access: yesMaterials, 2021
Nowadays the environment and its natural resources face many issues, related to the depletion of natural resources beside the increase in environmental pollution resulted from uncontrolled plastic waste disposal. Therefore, it is important to find effective and feasible solutions to utilize these wastes, such as using them to produce environmentally ...
openaire   +2 more sources

DURABILITY CHARACTERISTIC OF COCONUT FIBER AGGREGATE CONCRETE BOND IN LIGHTWEIGHT FOAM CONCRETE [PDF]

open access: yesJournal of Mechanics of Continua and Mathematical Sciences
The research paper probes into coconut fibre used as lightweight aggregate in concrete for thermal conditioning, specifically on durability. The durability properties of coconut fibre and coconut fibre lightweight aggregate concrete were examined on ...
Divyajit Das   +2 more
doaj   +1 more source

Production of Lightweight Concrete by Using Construction Lightweight Wastes [PDF]

open access: yesEngineering and Technology Journal, 2019
This research covers the use of cellular lightweight concrete waste as recycled coarse aggregates to produce lightweight concrete. Various volume fractions of coarse aggregate (35%, 50%, and 75%) were used.
Huda Abed
doaj   +1 more source

Dynamic mechanical properties and failure mechanism of sustainable lightweight aggregate rubber concrete

open access: yesJournal of Materials Research and Technology
Developing high-performance sustainable concrete is an ongoing pursuit in the civil engineering. In the current study, a sustainable lightweight aggregate rubber concrete was developed.
Lin Chen   +4 more
doaj   +1 more source

Lightweight sintered aggregate as construction material in concrete structures

open access: yesMATEC Web of Conferences, 2018
The paper presents the result of testing a new patented lightweight aggregates. The only solid material used to manufactured these aggregate is fly ash. Lightweight sintered aggregate is durable, lightweight and high-strength material.
Grygo Robert, Pranevich Victor
doaj   +1 more source

Preparation and Characterization of Ultra-Lightweight Foamed Concrete Incorporating Lightweight Aggregates

open access: yesApplied Sciences, 2019
Increasing interest is nowadays being paid to improving the thermal insulation of buildings in order to save energy and reduce ecological problems.
Mohamed Abd Elrahman   +4 more
doaj   +1 more source

WATER WITHIN LIGHTWEIGHT AGGREGATE CONCRETE AND ITS RELATION TO AUTOGENOUS SHRINKAGE [PDF]

open access: yes, 2006
Autogenous shrinkage of lightweight aggregate concrete (LAC) has been investigated with the aims of studying if water within LAC is effective in preventing autogenous shrinkage as suggested by Bentz’s model.
Kristiawan, S A, Sangadji, Senot
core  

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Comparative relevant aspects regarding lightweight concrete containing polystyrene beads

open access: yesJournal of Materials and Engineering Structures, 2023
Generally, the main of this experimental work is to found new resources in materials of constructions, especially with the interdiction of the exploitation of some sea sand careers.
Houari ABDELHADI   +2 more
doaj  

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