The role of the aggregate shape on the compressive strength of concrete using a new micro geo-informatics methodology

In this paper the results of an experimental study on the behavior of aggregate shape on the compressive concrete strength was described. The main scope of that work is to answer whether there is a low-cost, low-energy methodology for predicting the behavior of an aggregate within a concrete and the...

Full description

Saved in:
Bibliographic Details
Published in:Micron (Oxford, England : 1993) England : 1993), 2022-10, Vol.161, p.103333-103333, Article 103333
Main Authors: Petrounias, Petros, Rogkala, Aikaterini, Giannakopoulou, Panagiota P., Kalpogiannaki, Maria, Laskaris, Nikolaos, Lampropoulou, Paraskevi
Format: Article
Language:English
Subjects:
Concrete aggregates
Geometrical properties
GIS
Matlab
Micropetrographic index
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper the results of an experimental study on the behavior of aggregate shape on the compressive concrete strength was described. The main scope of that work is to answer whether there is a low-cost, low-energy methodology for predicting the behavior of an aggregate within a concrete and therefore its ultimate strength. This was achieved by using a combination of petrographic methods with GIS and MatLab software in a variety of lithologies when simultaneously producing a new micropetrographic index (Mshape) for the first time. For this reason, variable rocks such as sandstones, ultramafic, mafic and volcanic have been collected from Greece which are used as aggregates. Their petrographic characteristics as well as their geometrical properties were studied and hence their influence on concrete production. In the present study, a new micro-petrographic index is proposed based on the present proposed methodology which is able to act as a predictor of the aggregates shape and therefore of their behavior and suitability. Mshape index is strongly correlated with the geometrical indices of shape IE and IF as well as with the concrete strength. •GIS and MatLab software for identification of microshape parameters of aggregates.•Min/max ratio & eccentricity are determinant factors aggregate’s microshape.•The proposed micro-petrographic Mshape index is strongly related to IE and IF.•Use of Mshape to predict aggregate’s and concrete’s behavior.
ISSN:0968-4328
1878-4291
DOI:10.1016/j.micron.2022.103333