Results 21 to 30 of about 567,772 (379)
Recent Advances in Magnesia Blended Cement Studies for Geotechnical Well Construction—A Review
The current paper presents a literature review on the studies of incorporation of magnesia (magnesium oxide) into Portland cement material from the geotechnical well construction perspective.
Weiqing Chen+3 more
doaj +1 more source
We evaluate the biogeomorphological impacts of seaweed on materials commonly used in maritime built heritage restoration. After 6 months of exposure to intertidal conditions, we found no evidence of enhanced deterioration of mortar prepared using natural cement when covered with seaweed compared to uncovered mortar.
Timothy Baxter+2 more
wiley +1 more source
Abstract Background Expandable endoprostheses can be used to equalize limb length for pediatric patients requiring reconstruction following large bony oncologic resections. Outcomes of the Compress® Compliant Pre‐Stress (CPS) spindle paired with an Orthopedic Salvage System expandable distal femur endoprosthesis have not been reported.
Kara S. Tanaka+16 more
wiley +1 more source
Several methods to measure the critical chloride content Ccrit of steel in concrete are compared on the basis of 12% chromium steel and carbon steel. The resulting Ccrit depends on the method used. The reasons for this and the corresponding influencing parameters are discussed in this article.
Carolina Boschmann Käthler+5 more
wiley +1 more source
The impact of superplasticizers on the radiation changes in Portland cement stone and concretes [PDF]
The authors have estimated the effect of advanced superplasticizers of types Muraplast, Reamin, Weiss SM, Polyplast SP-1 and Melflux on radiation changes in Portland cement stone and concretes of radiation protection, based on experimental data from ...
A.V. Denisov
doaj +1 more source
Process Optimization on Preparation of Composite Portland Cement with Low-grade Pyrite Cinder
This is a paper in the field of mineral materials. In order to seek for a new feasible way to utilize low-grade pyrite cinder under local conditions, to solve bottleneck problems of large reserves, and to relieve soil and water pollution, a research on ...
Yonghui Li+4 more
doaj +1 more source
Effect of ultrasonication on carboxyl-functionalized multiwalled carbon nanotubes in fresh and hardened Portland cement pastes [PDF]
: The effects of chemical and physical methods on multiwalled carbon nanotube (MWCNT) dispersion in Portland cement pastes were investigated. Consistency, rheology, compressive strength, dynamic elastic modulus, flexural strength, water absorption, and ...
André Valmir Saugo Ribeiro+4 more
doaj +1 more source
Motivational factors affecting informal women entrepreneurs in North-West Province
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
Modeling the Influence of Ground-Granulated Blast Furnace Slag on Hydration of Cement
Portland cement is usually substituted with granulated blast furnace slag to make a slag-blended cement. A slag-incorporating cement has a more complicated hydration process than Portland cement due to the interactions between the slag reaction and the ...
Andualem Yadeta+2 more
doaj +1 more source
Multiple Optimization of Cold Reclaimed Asphalt Pavement Mixture [PDF]
Many asphalt pavements fail structurally after having performed well for some years. In China, when low volume of traffic highway is recycled, the asphalt surface course and the base course stabilized by inorganic stabilizers are sometimes recycled and ...
Yin Kangliying
doaj +1 more source