Influence of aggregate pre-wetting and fly ash on mechanical properties of lightweight concrete: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Influence of aggregate pre-wetting and fly ash on mechanical properties of lightweight concrete

Lo, T.Y. / Cui, H.Z. / Li, Z.G.

This study has examined the mechanical properties of lightweight aggregate concrete with a density of 1800 kg/m³. The effects of the following parameters on the concrete properties have been analyzed: the pre-wetting time of the lightweight aggregate and the percentage of pulverized fly ash used as cementitious replacement material. The strength of the lightweight aggregate was found to be the primary factor controlling the strength of high-strength lightweight concrete. An increase in the cementitious content from 420 to 450 kg/m³ does not significantly increase the strength of lightweight aggregate concrete. The relationship between the flexural and compressive strength at 28 days can be represented by the equation f_r=0. 69 root f_ck. The elastic modulus was found to be much lower than that of normal weight concrete, ranging from 15.0 to 20.3 GPa. The addition of PFA increases the slump and density of lightweight aggregate concrete.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Influence of aggregate pre-wetting and fly ash on mechanical properties of lightweight concrete

Lo, T.Y. / Cui, H.Z. / Li, Z.G.

This study has examined the mechanical properties of lightweight aggregate concrete with a density of 1800 kg/m³. The effects of the following parameters on the concrete properties have been analyzed: the pre-wetting time of the lightweight aggregate and the percentage of pulverized fly ash used as cementitious replacement material. The strength of the lightweight aggregate was found to be the primary factor controlling the strength of high-strength lightweight concrete. An increase in the cementitious content from 420 to 450 kg/m³ does not significantly increase the strength of lightweight aggregate concrete. The relationship between the flexural and compressive strength at 28 days can be represented by the equation f_r=0. 69 root f_ck. The elastic modulus was found to be much lower than that of normal weight concrete, ranging from 15.0 to 20.3 GPa. The addition of PFA increases the slump and density of lightweight aggregate concrete.

Influence of aggregate pre-wetting and fly ash on mechanical properties of lightweight concrete

Lo, T.Y. / Cui, H.Z. / Li, Z.G.

This study has examined the mechanical properties of lightweight aggregate concrete with a density of 1800 kg/m³. The effects of the following parameters on the concrete properties have been analyzed: the pre-wetting time of the lightweight aggregate and the percentage of pulverized fly ash used as cementitious replacement material. The strength of the lightweight aggregate was found to be the primary factor controlling the strength of high-strength lightweight concrete. An increase in the cementitious content from 420 to 450 kg/m³ does not significantly increase the strength of lightweight aggregate concrete. The relationship between the flexural and compressive strength at 28 days can be represented by the equation f_r=0. 69 root f_ck. The elastic modulus was found to be much lower than that of normal weight concrete, ranging from 15.0 to 20.3 GPa. The addition of PFA increases the slump and density of lightweight aggregate concrete.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Influence of aggregate pre-wetting and fly ash on mechanical properties of lightweight concrete

Contributors:

Lo, T.Y. (author) / Cui, H.Z. (author) / Li, Z.G. (author)

Published in:

Waste Management ; 24 ; 333-338

Publication date:

2004

Size:

6 Seiten, 17 Quellen

ISSN:

DOI:

https://doi.org/10.1016/j.wasman.2003.06.003

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Flugasche , Beton , mechanische Festigkeit , Druckfestigkeit

Similar titles

Mechanical properties of rubberized lightweight aggregate concrete

Miller, Nathan M | Online Contents | 2017

Mechanical properties of rubberized lightweight aggregate concrete

Miller, Nathan M. / Tehrani, Fariborz M. | British Library Online Contents | 2017

Mechanical properties of rubberized lightweight aggregate concrete

Miller, Nathan M. / Tehrani, Fariborz M. | British Library Online Contents | 2017

Mechanical properties of rubberized lightweight aggregate concrete

Miller, Nathan M. / Tehrani, Fariborz M. | British Library Online Contents | 2017

Mechanical properties of rubberized lightweight aggregate concrete

Miller, Nathan M. / Tehrani, Fariborz M. | British Library Online Contents | 2017