eprintid: 57
rev_number: 6
eprint_status: archive
userid: 4
dir: disk0/00/00/00/57
datestamp: 2006-04-04
lastmod: 2015-05-29 19:46:21
status_changed: 2009-04-08 16:53:14
type: report
metadata_visibility: show
item_issues_count: 0
creators_name: Fowkes, ND
creators_name: Mambili Mamboundou, H
creators_name: Makinde, OD
creators_name: Ballim, Y
creators_name: Patini, A
creators_id: fowkes@maths.uwa.edu.au
creators_id: mambili@cam.wits.ac.za
creators_id: makindeo@unorth.ac.za
creators_id: ballim@cicil.wits.ac.za
creators_id: anthony@civil.wits.ac.za
title: Maturity effects in concrete dams
ispublished: pub
subjects: utilities
subjects: materials
studygroups: misgsa1
companyname: Cement and Concrete Institute
full_text_status: public
abstract: Model equations for determining the coupled heat, moisture and maturity changes within a concrete block are introduced and briefly examined. Preliminary results are obtained for the heat exchange between concrete slabs in contact driven by maturity differences.
problem_statement: At the first (South African) Mathematics in Industry Study Group a mathematical model was developed to analyse the temperature, moisture content and maturity in concrete dams. Maturity describes the degree of hydration which occurs when water and cement are combined. By considering heat conservation, hydration chemistry and water conservation, three coupled nonlinear partial differential equations for the temperature, moisture content and maturity were derived. Since the moisture diffusivity of concrete depends on the moisture content, the moisture content satisfies a nonlinear diffusion equation. The Study Group is asked to investigate analytical and numerical solutions of this system of equations subject to suitable boundary and initial conditions for models of hydration of concrete dams.
date: 2004
date_type: published
pages: 9
citation:   Fowkes, ND and Mambili Mamboundou, H and Makinde, OD and Ballim, Y and Patini, A  (2004) Maturity effects in concrete dams.  [Study Group Report]     
document_url: http://miis.maths.ox.ac.uk/miis/57/1/Concrete2.pdf