ASR Related Service Life Estimation for Concrete Pavements

EasyChair Preprint no. 5019

Abstract

In a recently finished study on behalf of the federal highway research institute (BASt), 71 pavement concretes from highway sections across Germany were investigated regarding their present damage level and further potential for an alkali-silica reaction (ASR). After 5 years of diagnosis and testing, a new approach was derived for predicting the remaining service life of the pavement concretes, based on residual expansion measurements with the climate simulation concrete prism test. With data from lab-field correlations, a translation of testing time into service time (lab-field translation) was possible by using a fitted natural exponential function. In the result, the service life of the pavement concretes could be estimated, ranging from 11 to 51 years, depending on the ASR potential of the concrete mixes under consideration of an external alkali supply by NaCl de-icer solution. Meanwhile, a first agreement between the prediction and the field performance could be found. In this paper, the study will be introduced to the public for the first time. Objectives, scope and the most important results will be presented and discussed in detail.

Keyphrases: lab-field translation, pavement concrete, performance test, Service Life Estimation

@Booklet{EasyChair:5019,
  author = {Katrin Seyfarth and Colin Giebson and Horst-Michael Ludwig},
  title = {ASR Related Service Life Estimation for Concrete Pavements},
  howpublished = {EasyChair Preprint no. 5019},

  year = {EasyChair, 2021}}