Results 181 to 190 of about 8,920 (223)

Biological response of commercially available different tricalcium silicate‐based cements and pozzolan cement

Microscopy Research and Technique, 2017
AbstractThis study evaluated four root repair materials for cytotoxicity and cell attachment in vitro. Cell viability was determined at 24 hr, 3 days and 7 days by using a 2,3‐bis‐(2‐methoxy‐4‐nitro‐5‐sulfophenyl)‐2H‐tetrazolium‐5‐carboxanilide (XTT) assay with material extracts.
Serhat Köseoğlu, Tuğba Pekbağr?yan?k, Ebru Kucukyilmaz, Mehmet Sağlam, Sukru Enhos, Ayşe Akgün   +5 more
openaire   +2 more sources

Durable "Green" Concrete from Activated Pozzolan Cement

Green Streets and Highways 2010, 2010
Concrete is the most widely used man-made material, and the manufacture of portland cement - the active ingredient of concrete - accounts for 6 to 8 percent worldwide of all anthropogenic emissions of carbon dioxide, a leading greenhouse gas involved in global warming.
openaire   +1 more source

Modified Gypsum-Cement-Pozzolan Concrete for 3DCP

Construction Materials
3D concrete printing (3DCP) is an innovative and promising method for constructing buildings and structures. Compositions of fine-grained concrete based on Portland cement are widely used as raw material mixtures in this technology. An alternative to the use of cement binder is the use of gypsum-cement-pozzolan binder, which can significantly reduce ...
R. Kh. Mukhametrakhimov, R. Z. Rakhimov, A. R. Galautdinov, L. V. Ziganshina   +3 more
openaire   +1 more source

Mining with pozzolan cemented backfill

1986
Backfill stabilised by portland cement has been widely used in cut-and-fill mines. However, the cost of using portland cement tends to increase the cost of backfill and this has led to mine operators considering the use of pozzolans as partial replacement of portland cement.
openaire   +1 more source

Rational design of cement composites containing pozzolanic additions

Construction and Building Materials, 2017
Abstract In cement composite design, pozzolanic additions (PAs) are primarily considered as mass equivalents of cement to be replaced. This paper presents a modification to the traditional approach that takes into account the amounts of active and passive components in a particular PA.
Martin Keppert, Martina Urbanová, Jiří Brus, Monika Čáchová, Jan Fořt, Anton Trník, Lenka Scheinherrová, Martina Záleská, Robert Černý   +8 more
openaire   +1 more source

Sulfate-Resistance of Lime-Pozzolan-Cement Grouts

SP-212: Sixth CANMET/ACI: Durability of Concrete, 2003
The presence of gypsum during application of cementitious grouts inside masonry is a major concern, which may lead to the creation of ettringite and the subsequent damage of the masonry. The design concept of the presented hydraulic grouts is based on the reduction of the portland cement content to the 30%-wt of the total binder mass, in favor of ...
openaire   +1 more source

Engineering properties of pozzolanic cement-stabilized organic soil

Quarterly Journal of Engineering Geology and Hydrogeology
In this study, the engineering properties of organic soil (OS) stabilized with pozzolanic cement (PC) were investigated. In tests, 10, 15 and 20% proportions of PC were added to organic soil. Consistency limit, Proctor, unconfined compressive strength (UCS), triaxial (TA), swelling and compressibility tests were performed on the OS stabilized with PC ...
Eyubhan Avci, Mehmet Can Balci, Muhammed Ali Toprak   +2 more
openaire   +1 more source

Pozzolanic cements

Journal of the Society of Chemical Industry, 1935
R. G. Franklin, A. E. J. Vickers
openaire   +1 more source

Enthalpy of dehydration of Portland and pozzolanic cements

Cement and Concrete Research, 1989
Abstract The dehydration of low temperature phases in Portland and pozzolanic cements and pastes has been studied using a combination of Differential Scanning Calorimetry (DSC) and X-ray Powder Diffraction (XRD). Endotherms associated with the dehydration of gypsum, monosulphate and ettringite were observed by DSC.
openaire   +1 more source

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly