N
N. McN. Alford
Researcher at University of Oxford
Publications - 24
Citations - 1755
N. McN. Alford is an academic researcher from University of Oxford. The author has contributed to research in topics: Brittleness & Flexural strength. The author has an hindex of 16, co-authored 24 publications receiving 1688 citations. Previous affiliations of N. McN. Alford include University of London.
Papers
More filters
Journal ArticleDOI
Physical properties of high strength cement pastes
TL;DR: In this article, the strength and other physical properties of both ordinary pastes and modified (macro defect free) pastes were compared and compared by optical microscopy and transmission electron microscopy.
Journal ArticleDOI
An assesment of porosity and pore sizes in hardened cement pastes
N. McN. Alford,Abd Rahman +1 more
TL;DR: In this paper, the porosity of hardened cement paste was analyzed using fluid displacement methods, optical, scanning and transmission electron microscopy and mercury intrusion porosimetry and the authors considered the contribution of closed pores.
Journal ArticleDOI
A theoretical argument for the existence of high strength cement pastes
TL;DR: In this paper, the authors determine whether the volume of porosity or whether the size of individual pores is responsible for controlling strength in cement paste, and focus on the maximum pore size as being responsible for the strength characteristics of cement paste.
Journal ArticleDOI
The effects of sintering aids upon dielectric microwave properties of columbite niobates, M2+Nb2O6
TL;DR: In this paper, the columbite niobate ceramics ZnNb2O6, MgNb 2O6 and CaNb1O6 were doping with 1.5% V2O5, 1.1% CeO2, 2'wt% WO3 and 0.5'95% CuO, in an attempt to reduce the sintering temperature.
Journal ArticleDOI
The effect of lead nitrate on the physical properties of cement pastes
TL;DR: In this article, the effects of solution concentration and compaction of the pastes were investigated by means of strength testing and porosity analysis, and the presence of micro-cracking was detected by electron microscopy.