Results 111 to 120 of about 129,509 (231)

Lightweight concrete containing recycled aggregates

open access: yesMagazine of Civil Engineering
This study investigated the replacement of fine concrete aggregates with recycled aggregate. The results showed that the effect of recycled aggregate, so that, replacing 25, 50, 75 and 100 % of natural aggregate led to an 8, 23, 15 and 11 %, respectively, increase in the compressive strength of lightweight concrete samples.
openaire   +2 more sources

Optimising dosage of Lytag used as coarse aggregate in lightweight aggregate concretes

open access: yesJournal of the South African Institution of Civil Engineers, 2013
Lytag, manufactured first by pelletisation of a mixture of fly ash, bentonite and water, and then by sintering the spherical pellets at about 1 300°C, is used as coarse aggregate for producing lightweight plain and structural concrete mixtures.
S Ahmad, Y S Sallam, I A R Al-Hashmi
doaj  

Autogenous shrinkage, speciality of high performance concretes [PDF]

open access: yes, 2015
Autogenous shrinkage is a consequence of self dessication in pores of hardened cement paste and is, at high performance concrete significantly greater than that of the ordinary concretes, mainly due to low water to cement ratio.
Vogrič, Nina
core   +1 more source

Thermal conductivity of hemp concretes: Variation with formulation, density and water content

open access: yes, 2014
This study investigates the effect of formulation, density and water content on the thermal conductivity of hemp concretes. The investigations are based on experimental measurements and on self-consistent scheme modelling.
Collet, Florence, Prétot, Sylvie
core   +4 more sources

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