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A performance -based method for granular based method for granular -paste mix design

Hoornahad, H. ; Koenders, E. A. B. (2014)
A performance -based method for granular based method for granular -paste mix design.
9th international masonry conference. Guimarães, Portugal (07-09 July 2014)
Conference or Workshop Item, Bibliographie

Abstract

In this paper a performance-based method for the design of granular-paste mixtures will be proposed. Focus will be on the selection and proportioning of constituents to produce a mixture with a pre-defined shape holding ability. Shape holding ability of mixtures will be characterized by the shape preservation factor SPF. This SPF shows the ability of a mixture to preserve its shape after being demolded from a slump test. SPF is the ratio of the cross sectional area of a sample after and before demolding. By increasing the flowability of a mixture, the SPF decreases. In this study a mixture is first decomposed into aggregate, void paste and excess paste. Then a combination of the consistency of the paste and excess paste volume is determined for a required SPF. Finally, depending on the aggregate grading, the volumes of paste and aggregates in the system are determined.

Item Type: Conference or Workshop Item
Erschienen: 2014
Creators: Hoornahad, H. ; Koenders, E. A. B.
Type of entry: Bibliographie
Title: A performance -based method for granular based method for granular -paste mix design
Language: English
Date: December 2014
Place of Publication: Guimarães, Portugal
Event Title: 9th international masonry conference
Event Location: Guimarães, Portugal
Event Dates: 07-09 July 2014
Abstract:

In this paper a performance-based method for the design of granular-paste mixtures will be proposed. Focus will be on the selection and proportioning of constituents to produce a mixture with a pre-defined shape holding ability. Shape holding ability of mixtures will be characterized by the shape preservation factor SPF. This SPF shows the ability of a mixture to preserve its shape after being demolded from a slump test. SPF is the ratio of the cross sectional area of a sample after and before demolding. By increasing the flowability of a mixture, the SPF decreases. In this study a mixture is first decomposed into aggregate, void paste and excess paste. Then a combination of the consistency of the paste and excess paste volume is determined for a required SPF. Finally, depending on the aggregate grading, the volumes of paste and aggregates in the system are determined.

Uncontrolled Keywords: granular-paste mixture, Performance-based mix design method, shape preservation factor
Divisions: 13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute of Construction and Building Materials
Date Deposited: 04 Jun 2015 08:41
Last Modified: 28 May 2024 10:49
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