Identifying the Reference Time for Determining the Compressive Strength of Concrete Containing Different Types of Cements

Open access

Abstract

The compressive strength of the concrete measured at 28 days is the criterion for assessing the concrete class, and these values will be acceptable precise indications for other physical and mechanical characteristics of the concrete. In addition to the factors the compressive strength of concrete varies on (such as: the characteristics and proportion of constituents, the placement conditions and subsequent treatment and testing conditions), the concrete class should also depend on the type of cement contained and the concrete strength evolution over time. Due to the fact that concretes with composite cements have a slower evolution of compressive strength and a significant strength increase after 28 days, concretes with different types of cements and mineral admixtures were tested for compression after 28 days in order to determine the reference time for such tests – and thus the concrete’s class.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] SR EN 1992-1-1:2004 - Eurocode 2: Design of concrete structures - Part 1-1: General rules rules for buildings bridges and civil engineering structures;

  • [2] PT1prEN 1992-1-1:2017-10 - Eurocode 2: Design of concrete structures - Part 1-1: General rules rules for buildings bridges and civil engineering structures;

  • [3] SR EN 12350-1:2009 Test on fresh concrete. Part 1: Sampling

  • [4] SR EN 12390-2:2009 Test on hardened concrete. Part 2: Preparation and storage of test specimens for strength testing;

  • [5] SR EN 12390-3:2009 Test on hardened concrete. Part 3: Compression strength of specimens;

  • [6] Anca Ionescu - Research report no. 3 of the Doctoral Thesis - Experimental research for determining the optimal terms for the establishing the concrete characteristics made with cements with mineral additions.

Search
Journal information
Metrics
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 91 91 3
PDF Downloads 48 48 6