We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Two Limiting Lines Technique to Obtain Minimum Paste Demand of Self-Consolidating Concrete.
- Authors
Urban, Maciej
- Abstract
Today, one of the most important challenges of self-consolidating concrete (SCC) technology is minimization of cement paste content. Unfortunately, there are no methods that include this important criterion. The author aimed to fill this gap by determining the relative thickness of excess paste on aggregate grains parameter (trel). This parameter is linearly correlated to minimal paste content needed to obtain a given SCC consistency level (Vpaste min). Two such lines were recognized: minimum paste demand line and minimum relative thickness of excess paste line. The main parameters influencing obtaining these lines are: sand to total aggregate ratio (s/a), void content in a loose state (íl), the coarsest fraction content, water-binder ratio (w/b), superplasticizer content, and aggregate fines content (or, alternatively, stone powder content). The proposed design procedure begins with assessment of both lines (using only four to six trial batches of extreme compositions in consideration). Next, the lines are used to predict the Vpaste min level by simple calculation of trel for a given SCC composition.
- Subjects
PASTE; SELF-consolidating concrete; CEMENT
- Publication
ACI Materials Journal, 2019, Vol 116, Issue 6, p131
- ISSN
0889-325X
- Publication type
Article
- DOI
10.14359/51716984