Roads and Bridges - Drogi i Mosty
10, 3, 2011, 23-37

Identification of number and thickness of new test section pavement model layers using artificial intelligence methods

Jan-Erik Jonasson Mail
Division of Structural Engineering, Luleå University of Technology, Sweden
Arne Retelius Mail
R & D Director, CMT International AB, Sweden

Abstract

The maturity method is a known technique to combine the effect of time and temperature at concrete hardening to evaluate strength growth in structural concretes. The theoretical basis of this technique is known since several decades, but quick and easy systems for effective applications have just recently been developed. The application of the maturity concept has lately been shown to be very effective for almost all structural concreting, which may be generally summarized as a rational way of gaining construction time with higher safety than old techniques like testing small specimens stored near the actual structure on-site. It is shown that the reduction of construction time to reach required strength demands can be reduced by more than 25% in most application cases. The modern systems involve both how to test and establish necessary data for arbitrary concrete mixes as well as using easy tools both to predict strength at the planning phase and during construction follow up the strength growth in the structural concrete in-place. As material data easily can be established for any concrete mix, the developed technique can preferably be used for so called green concretes with replacements of Portland cement with supplementary cementitions material to reduce the carbon footprint of the technology.

Keywords


compressive strength, concrete maturity, strength development

Full Text:

PDF

References


McIntosh J.D.: Electrical curing of concrete. Magazine of Concrete Research, 1, 1, 1949, 21 - 28

Nurse R.W.: Steam curing of concrete. Magazine of Concrete Research, 1, 2, 1949, 79 - 88

Saul A.G.A.: Principals underlying the steam curing of concrete at atmospheric pressure. Magazine of Concrete Research, 2, 6, 1951, 127 - 140

Bergström S.G.: Curing temperature, age and strength of concrete. Magazine of Concrete Research, 5, 14, 1953, 61 - 66

Rastrup E.: Heat of hydration in concrete. Magazine of Concrete Research, 6, 17, 1954, 79 - 92

Carino N.J., Woodward K.A., Leyendecker E.V., Fattal S.G.: A Review of the Skyline Plaza Collapse. Concrete International, 5, 7, 1983, 35 - 42

Lew H.S., Fattal S.G., Shaver J.R., Reinhold T.A., Hunt B.J.: Investigation of construction failure of reinforced concrete cooling tower at Willow Island, West Virginia. Final report. Center for Building Technology, National Engineering Laboratory, National Bureau of Standards, Washington D.C. 1979

Carino N.J., Lew H.S.: The Maturity Method: From Theory to Application. Building of Fire Research Laboratory, National Institute of Standards and Technology, Gaithersburg, 2001, 1 - 19

ASTM C 1074: Standard Practice for Estimating Concrete Strength by the Maturity Method. ASTM International, West Conshohocken

BS EN 13670:2009 European Standard: Execution of concrete structures

Nykänen A.: Hardening of Concrete at Different Temperatures, Especially Below the Freezing Point. Proceedings, RILEM Symposium of Winter Concreting: Theory and Practi[12] Freisleben Hansen P., Pedersen E.J.: Maturity Computer for Controlled Curing and Hardening of Concrete. Nordisk Betong, 1, 19, 1977, 21 - 25

Byfors J.: Plain concrete at early ages. Swedish Cement and Concrete Research Institute, Fo/Research 3:80, Stockholm 1980

Jonasson J.E.: Slipform Construction – Calculations for Assessing Protection Against Early Freezing. Swedish Cement and Concrete Research Institute, Fo/Research 4:84, Stockholm 1984

Kanstad T., Hammer T.A., Bjřntegaard Ř., Sellevold E.J.: Mechanical Properties of Young Concrete - Evaluation of Test Methods for Tensile Strength and Modulus of Elasticity - Determination of Models Parameters. NOR-IPACS Report STF22 A99762, ISBN 82-14-01062-4, Trondheim 1999

Jonasson J.E.: Modelling of temperature, moisture and stresses in young concrete. Luleĺ University of Technology, Division of Structural Engineering, Doctoral Thesis 1994.153D, Luleĺ 1994

Ekerfors K., Jonasson J.E.: Maturity Development in Young Concrete - Temperature Sensitivity, Strength and Heat Development. Nordic Concrete Research No. 25, 2/2000, 35 - 47

ConTeSt-T Program for temperature and strength calculations in concrete. JEJMS Conrete AB, Lulea 2008


Identification of number and thickness of new test section pavement model layers using artificial intelligence methods

  
Jonasson, Jan-Erik; Retelius, Arne. Identification of number and thickness of new test section pavement model layers using artificial intelligence methods. Roads and Bridges - Drogi i Mosty, [S.l.], v. 10, n. 3, p. 23-37, apr. 2011. ISSN 2449-769X. Available at: <>. Date accessed: 18 Jan. 2020.