Results 41 to 50 of about 95,262 (313)

Compressive strength improvement for recycled concrete aggregate

open access: yesMATEC Web of Conferences, 2018
Increasing amount of construction waste and, concrete remnants, in particular pose a serious problem. Concrete waste exist in large amounts, do not decay and need long time for disintegration.
Mohammed Dhiyaa   +3 more
doaj   +1 more source

The influence of curing conditions on the mechanical performance of concrete made with recycled concrete waste [PDF]

open access: yes, 2011
Research on the use of Construction and Demolition Waste (CDW) as recycled aggregate (in particular crushed concrete) for the production of new concrete has by now established the feasibility of this environmentally-friendly use of otherwise harmful ...
De Brito, Jorge   +2 more
core   +1 more source

Influence of Recycled Aggregate Quality on the Mechanical Properties of Concrete

open access: yesCommunications, 2014
The use of recycled construction and demolition waste - especially recycled concrete - as an aggregate for new concrete mixes, leads to saving of natural resources and helps to reduce the pressure on landfilling sites.
Tereza Pavlu, Luc Boehme, Petr Hajek
doaj   +1 more source

A review on performance of waste materials in self compacting concrete (scc) [PDF]

open access: yes, 2016
Self-compacting concrete (SCC) was first developed in late 80’s in Japan. SCC is well known for its self-consolidation and able to occupy spaces in the formwork without any vibration and become new interesting topic in Construction and Building Materials
Ismail, Isham   +2 more
core   +2 more sources

Reinforcement of Recycled Aggregate by Microbial-Induced Mineralization and Deposition of Calcium Carbonate—Influencing Factors, Mechanism and Effect of Reinforcement

open access: yesCrystals, 2021
Recycled aggregate is aggregate prepared from construction waste. With the development of a global economy and people’s attention to sustainable development, recycled aggregate has shown advantages in replacing natural aggregate in the production of ...
Chunhua Feng   +5 more
doaj   +1 more source

Permeability of Concrete with Recycled Concrete Aggregate and Pozzolanic Materials under Stress. [PDF]

open access: yes, 2016
The research reported herein studied the permeability of concrete containing recycled-concrete aggregate (RA), superfine phosphorous slag (PHS), and ground granulated blast-furnace slag (GGBS) with and without stress.
MONTEIRO, Paulo J.m.   +3 more
core   +2 more sources

Steam curing effect on the properties of fly ash high performance recycled aggregates concrete [PDF]

open access: yes, 2016
The aim of this study is to encourage the use of Recycled Concrete Aggregate (RCA) in High Performance Concrete (HPC) with fly ash. Three types of coarse RCA sourced from medium to high strength concretes were employed in 100% replacement.
Etxeberria Larrañaga, Miren   +1 more
core   +1 more source

Treatment of end-of-life concrete in an innovative heating-air classification system for circular cement-based products [PDF]

open access: yes, 2020
A stronger commitment towards Green Building and circular economy, in response to environmental concerns and economic trends, is evident in modern industrial cement and concrete production processes.
Di Maio, F.   +4 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

The effect of recycled aggregate on properties of concrete: A review

open access: yesHybrid Advances
This paper explains the effect of recycled concrete aggregate on the properties of concrete. The review study showed these results: the compressive strength of the concrete with recycled aggregate is lower than that with natural aggregate.
Lubnar Alkhteeb, M.B. Dawood
doaj   +1 more source

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