Results 151 to 160 of about 567,772 (379)

The sulphate resistance of the portland cements and their grinding fineness degree: analysis of their relation

open access: yesMateriales de Construccion, 1994
This work has demonstrated the great influence that the specific surface of a Portland cement has on its qualification as a high or low resistance to sulfate ion attack - SIA, by means of the accelerated method ASTM C 452.
R. Talero, J. Palacios, J. E. Morales
doaj   +1 more source

Study on corrosion resistance of Portland cement-calcium sulphoaluminate cement binary system in a sodium chloride environment [PDF]

open access: yes, 2022
Portland cement is widely used in civil engineering. However, Portland cement-based materials are easy to be corroded by seawater in marine environment.
Ma, Ying   +5 more
core   +1 more source

INGREDIENT OF PORTLAND CEMENT

open access: yes, 2022
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin, and is usually made from limestone.
openaire   +2 more sources

Recent advances in embedded technologies and self‐sensing concrete for structural health monitoring

open access: yesStructural Concrete, EarlyView.
Abstract Fully embedded and spatially diffuse sensors are central to the advancement of civil and construction engineering. Indeed, they serve as an enabling technology necessary for addressing the current challenges associated with through‐life management and structural health monitoring of existing structures and infrastructures. The need to identify
Marco Civera   +2 more
wiley   +1 more source

Thickness Design Curves for Portland Cement Concrete Pavements [PDF]

open access: yes, 1984
Past experience indicates that thickness designs using portland cement concrete best agree with criterion used in the Portland Cement Association\u27s design method for 18-kip EAL of 2 to 3 million or less.
Deen, Robert C., Southgate, Herbert F.
core   +1 more source

The Effect of Clay Pozzolana-Cement-Composite on the Strength Development of a Hydraulic Backfill [PDF]

open access: yes, 2018
The study sought to investigate the potential application of clay pozzolana as a supplement for cement in hydraulic backfill, using classified tailings from AngloGold Ashanti, Obuasi Mine.
Eshun, S. N.   +2 more
core   +2 more sources

Flexural design of alkali‐activated reinforced concrete beams: Evaluating model errors using standards for Portland concrete

open access: yesStructural Concrete, EarlyView.
Abstract The article examines the potential of utilizing existing standard codes, although originally designed for Portland cement, in the flexural design of geopolymer (GP) concrete beams. In particular, the article collects experimental data from the literature on the cracking and ultimate moment of reinforced GP concrete beams, with and without ...
Erica Lenticchia, Marialorenza Vescovi
wiley   +1 more source

Ultrasonic monitoring of carbonation in Portland cements [PDF]

open access: yesarXiv
Chemical reactions resulting from the ingress of carbonates into the cement matrix modify the properties of its pore solution, as well as its pore distribution and size. These changes lead to corrosion of the steel in reinforced concrete. The nature of conventional testing for the estimation of carbonation in cement-based materials is time-consuming ...
arxiv  

Yielding and flow of foamed metakaolin pastes [PDF]

open access: yesarXiv, 2015
Metakaolin is a broadly used industrial raw material, with applications in the production of ceramics and geopolymers, and the partial replacement of Portland cement. The early stages of the manufacturing of some of these materials require the preparation and processing of a foamed metakaolin-based slurry.
arxiv  

Efektifitas Penggunaan Kapur Terhadap R-Value Lempung Semen [PDF]

open access: yes, 2003
One of parameters on bearing capacity of subgrade for pavement design is R-Value. Bearing capacity of soil could be improved by soil stabilization method. Lime modification could be used prior to soil stabilization.
Suryo Hapsoro Tri Utomo
core   +1 more source

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