Results 21 to 30 of about 312,101 (295)

High belite cement from alternative raw materials

open access: yesMateriales de Construccion, 2014
Three high belite laboratory clinkers were prepared from traditional and alternative raw materials. Reference clinker was obtained from 77% limestone, 11% sandy clays, 11% fatty clays and 1% iron scales.
H. Y. Ghorab   +3 more
doaj   +1 more source

Hemiarthroplasty: To Cement or not to Cement? A Preliminary Report

open access: yesHIP International, 2004
Two hundred hemiarthroplasties were studied to compare uncemented Austin Moore and cemented Thompson's prostheses. The following variables were compared: pre-operative mobility, ASA grade, Abbreviated Mental test scores, surgeon grade, peri-operative mortality, infection rate, operation time, intra-operative fractures, dislocation rate, thigh pain and
Shewale, S, Pandit, H, Latham, J
openaire   +3 more sources

Optimization of nanostructured/nano sized rice husk ash preparation

open access: yesمجلة بغداد للعلوم, 2020
The objective of the study is developing a procedure for production and characterization of rice husk ash (RHA). The effects of rice husk (RH) amount, burning/cooling conditions combined with stirring on producing of RHA with amorphous silica, highest ...
Medhat Mostafa   +3 more
doaj   +1 more source

Evaluation of Electromagnetic Pulse Shielding Performance of Carbon Fiber-Mixed Cement Paste

open access: yesInternational Journal of Concrete Structures and Materials, 2022
This study investigated the physical properties and electromagnetic pulse (EMP) shielding performance of cement paste containing small-diameter carbon fibers to develop an EMP-shielding cement. Small-diameter carbon fibers were used as a cement admixture
Tae-Beom Min, Hyeong-Kyu Cho
doaj   +1 more source

Transportation Models

open access: yesSouth African Journal of Business Management, 1971
No abstract available.
C. F. Fiore, J. Ryder
doaj   +1 more source

Resistance Properties to Chloride Ingress of Standard-Cured Concrete Made with an Admixture Incorporating Rich SiO2 and Al2O3

open access: yesInternational Journal of Concrete Structures and Materials, 2020
In regions where the concrete structures are exposed to a salty environment, the concrete requires high resistance to chloride-ion penetration. To achieve higher resistance against chloride ingress, a pozzolanic admixture incorporating a high volume of ...
Koichiro Yamato   +3 more
doaj   +1 more source

BCSA Rawmix Design: Correlation between Chemical Constituents and Mineralogy

open access: yesASEAN Journal on Science and Technology for Development, 2021
The cement industry has been identified as one of the main contributors to climate change due to greenhouse gas emissions, mainly CO2. Therefore, to meet CO2 reduction targets, cement producers are working on different strategies of minimizing its ...
Suresh Palla   +4 more
doaj   +1 more source

Motivational factors affecting informal women entrepreneurs in North-West Province

open access: yesThe Southern African Journal of Entrepreneurship and Small Business Management, 2017
Background: Informal women entrepreneurs in the rural villages of North-West strive to progress from poverty to prosperity. There is a growing appreciation that the conditions that support women’s ability to start and grow ventures may be different from ...
Sanchen Henning, Kabira Akoob
doaj   +1 more source

Experimental investigation on effect of corrosion on curvature-ductility relationship of RCC member in flexure

open access: yesJournal of Building Materials and Structures, 2022
Corrosion of reinforcement in concrete is the biggest concern when it comes to durability of concrete structure. It is not only detrimental to the health of the structure but also has economic implications with regard to the money and energy required ...
P N Ojha   +4 more
doaj   +1 more source

Recomendaciones prácticas para los ensayos de cemento

open access: yesMateriales de Construccion, 1956
No ...
A.S.T.M. Committee C-1 on Cement
doaj   +1 more source

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