Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Kenneth A. Tutu"'
Publikováno v:
Case Studies in Construction Materials, Vol 17, Iss , Pp e01425- (2022)
This study investigated concrete quality issues at eleven multistory building construction sites in Kumasi metropolis amid several cases of multistory building collapses in Ghana. The objective was to understand key aspects of concrete quality proble
Externí odkaz:
https://doaj.org/article/6b38afac42594364a42f180c2c583136
Publikováno v:
Scientific African, Vol 17, Iss , Pp e01348- (2022)
The Superior Performing Asphalt Pavements (Superpave) system – comprising asphalt binder grading, mixture design and mixture performance evaluation – has been in existence for nearly 30 years and has been implemented or evaluated for possible ado
Externí odkaz:
https://doaj.org/article/bad208664d00423aa82308284c0f7ff7
Autor:
David H Timm, Kenneth A. Tutu
Publikováno v:
International Journal of Pavement Engineering. 23:2654-2674
Mechanistic-empirical (M-E) fatigue models for asphalt concrete (AC) pavements often ignore damage induced-changes in the AC, although laboratory testing and field studies show that AC modulus dete...
Autor:
David H Timm, Kenneth A. Tutu
Publikováno v:
International Journal of Pavement Engineering. 23:1239-1247
The National Cooperative Highway Research Program (NCHRP) Project 9-38 developed a method for estimating asphalt fatigue endurance limit (FEL) which employs bending beam fatigue (BBF) lives. Anothe...
Autor:
David H Timm, Kenneth A. Tutu
Publikováno v:
Transportation Research Record: Journal of the Transportation Research Board. 2641:48-57
The validity of backcalculation results partly depends on the pavement cross section used in the procedure. However, the development of a backcalculation cross section is challenging, particularly for an unconventional pavement (subgrade stiffer than
Autor:
Yaw A. Tuffour, Kenneth A. Tutu
Publikováno v:
Open Journal of Civil Engineering. :84-93
Within the past two decades or so, the asphalt paving industry has responded positively to increasing global concerns over shrinking natural resource reserves and worsening environmental conditions through the development and deployment of warm-mix a