Results 11 to 20 of about 75,321 (266)

The Durability of Recycled Fine Aggregate Concrete: A Review. [PDF]

open access: yesMaterials (Basel), 2022
With the rapid development of urbanization, many new buildings are erected, and old ones are demolished and/or recycled. Thus, the reuse of building materials and improvements in reuse efficiency have become hot research topics. In recent years, scholars around the world have worked on improving recycle aggregates in concrete and broadening the scope ...
Bu C   +8 more
europepmc   +4 more sources

Ecotoxicity and Essential Properties of Fine-Recycled Aggregate [PDF]

open access: yesMaterials, 2021
This article deals with the possibility of utilization of secondary-raw materials as a natural sand replacement in concrete. Four types of waste construction materials were examined—recycled aggregate from four different sources. The natural aggregate was examined as well as used as the reference sample.
Diana Mariaková   +5 more
openaire   +2 more sources

The Effect of Gradation and Grain-Size Properties of Fine Aggregate on the Building Mortars

open access: yesProduction Engineering Archives, 2020
This work is about the effect of fine aggregate properties on the physicomechanical characteristics of hardened mortars. The results indicated that the increase in grain-size of fine aggregate increases the bulk density of hardened mortars.
Mehmetoğulları Ebubekir   +2 more
doaj   +1 more source

Inhibitory mechanism of fly ash on alkali-silica reactivity of siliceous rock fine aggregate: A case study of Yangxi concrete dam

open access: yesCase Studies in Construction Materials, 2023
The fine aggregate of siliceous rock has the advantages of high production efficiency, stable yield and low construction and transportation cost. The Yangxi concrete dam was firstly apply siliceous rock as fine aggregate to a large concrete project of ...
Jianguo Chen   +5 more
doaj   +1 more source

Comparative Study between Recycled Fine and Coarse Aggregate Used in Roller Compacted Concrete Pavement

open access: yesJournal of Engineering, 2023
To decrease the impact on the environment of building waste, the recycled aggregate may be used in various sustainable engineering applications, such as roller compacted concrete pavement (RCCP).
Mustafa Q. Khalid, Zena K. Abbas
doaj   +1 more source

Effect of Limestone Waste as Partial Replacement Material for Sand and Silica Fume in Concrete [PDF]

open access: yesPort Said Engineering Research Journal, 2012
This paper presents the results of a study to compare the properties of concretes prepared with the use river sand, limestone waste (LSW), and silica fume (S.F).
Hassan Mohamaden   +3 more
doaj   +1 more source

Properties of Precast Concrete Units Produced Using Fine Aggregate with Salt Content Higher than 0.5%

open access: yesIraqi Journal of Civil Engineering, 2009
This study assesses the possibility of using fine aggregate with sulphate content higher than the Iraqi standard limit of 0.5% to produce hollow concrete blocks and paving concrete bricks.
Mays Fouad Al-Rubaie
doaj   +1 more source

Aggregation of fine particles at the sediment‐water interface [PDF]

open access: yesJournal of Geophysical Research: Oceans, 1992
The presence of a bottom sediment layer agitated by mechanical stirring or by resident organisms (tubificid oligochaetes) significantly increases the rate at which fine (1 μm) cohesive particles are removed from suspension in laboratory columns. Measured rates of particle removal are equivalent to deposition velocities ranging from 0.23 m day−1 to 0.41
Stolzenbach, Keith D.   +2 more
openaire   +2 more sources

Experimental Study on concrete behaviour with Partial Replacement of M-Sand with Unexpanded Perlite [PDF]

open access: yesE3S Web of Conferences, 2023
Traditionally, river sand was utilized as fine aggregate in concrete manufacturing. However, due to the ongoing extraction of natural river sand, its availability has become limited.
Premalatha P.V.   +3 more
doaj   +1 more source

Meta-analysis on PET plastic as concrete aggregate using response surface methodology and regression analysis

open access: yesJournal of Infrastructure Preservation and Resilience, 2023
This paper aims to thoroughly analyze the effect of polyethylene terephthalate (PET) plastic aggregate on concrete compressive strength using a meta-analysis. Forty-three datasets for concrete containing PET coarse aggregate and 60 data sets for concrete
Beng Wei Chong, Xijun Shi
doaj   +1 more source

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