Results 251 to 260 of about 567,569 (296)

Changes in microstructure characteristics of cement paste on carbonation

Cement and Concrete Research, 2018
This study investigates the influence of carbonation on the microstructure of cement paste cast with Ordinary Portland Cement (OPC), fly ash based Portland Pozzolana Cement (PPC) and Limestone Calcined Clay Cement (LC3) using X-ray diffraction (XRD ...
Vineet Shah, K. Scrivener, Bishwajit Bhattacharjee, Shashank Bishnoi   +3 more
semanticscholar   +1 more source

Towards a further understanding of cement hydration in the presence of triethanolamine

Cement and Concrete Research, 2020
The acting mechanism of triethanolamine (TEA) on cement hydration was studied by combination of techniques including calorimetry, in-situ XRD and pore solution analysis.
Zichen Lu, X. Kong, D. Jansen, Chao-yang Zhang, Jian Wang, Xiaofan Pang, Jianhao Yin   +6 more
semanticscholar   +1 more source

Graphene reinforced cement composites: A review

, 2020
Graphene reinforced cement composites have been continuously reported in the past years to exhibit extraordinary mechanical properties, durability and multi-functionality owing to the unique intrinsic properties possessed by pristine graphene.
Youli Lin, Hongjian Du
semanticscholar   +1 more source

Ultrafine Cement for Oilwell Cementing

Proceedings of Low Permeability Reservoirs Symposium, 1993
Abstract Ultrafine cements are particulate, cementitious grouting materials that were initially developed as a replacement for unacceptably toxic chemical grouts for Civil Engineering applications. Several basic types are available: ultrafine slag cement (M1), ultrafine Portland cement (M3) and ultrafine portland/slag (M5).
W. J. Clarke, A. C. McNally
openaire   +1 more source

Effect of carbonation curing regime on strength and microstructure of Portland cement paste

, 2019
This study aims to investigate the effects of pre-curing and carbonation duration on compressive strength and microstructure characteristics of Portland cement paste.
Tiefeng Chen, Xiaojian Gao
semanticscholar   +1 more source

Freeze-thaw performance of a cement-treated expansive soil

, 2020
This experimental study presents an attempt on the effect of cement addition to expansive soil on its deformation and strength behaviours when subjected to freezing–thawing (F–T) action.
Yang Lu, Si-hong Liu, Zhang Yonggan, Zhuo Li, X. Lei   +4 more
semanticscholar   +1 more source

CEMENT TLA

2019
Da bi se na nekoj podlozi nešto sagradilo potrebno je da podloga ima određena svojstva primjerena gradnji. Danas se za pripremu neadekvatne podloge za gradnju koriste dva načina. Jedan podrazumijeva da se podloga za izgradnju u potpunosti promjeni, a drugi je da se postojećoj podlozi poboljšaju svojstva.
openaire   +3 more sources

Cement-within-Cement Femoral Stem Reimplantation Technique

Acta chirurgiae orthopaedicae et traumatologiae Cechoslovaca, 2011
The reimplantation of a cemented femoral component at revision is always a challenge for the orthopaedic surgeon, particularly when the cement mantle is intact. The aim of this study was to provide evidence that the recementing of a femoral stem into the original cement mantle can be included in routine surgical procedures.A group of 104 patients with ...
T, Judl, D, Jahoda, I, Landor, D, Pokorný, P, Melicherčík, A, Sosna   +5 more
openaire   +2 more sources

Investigation of C-A-S-H composition, morphology and density in Limestone Calcined Clay Cement (LC3)

Cement and Concrete Research, 2019
In this study, the C-A-S-H composition, morphology and density are characterized for Limestone Calcined Clay Cement (LC3-50) blends containing clays with various kaolinite contents.
F. Avet, E. Boehm-Courjault, K. Scrivener   +2 more
semanticscholar   +1 more source

Expanding Cements for Primary Cementing

Journal of Petroleum Technology, 1966
Abstract The expansion of cement and the effect of various expansive aids upon oil well cementing compositions have been investigated to determine the amount of expansion feasible and to observe the stability of cements displaying increased expansion.
L.G. Carter, H.F. Waggoner, C. George
openaire   +1 more source