Results 31 to 40 of about 204,898 (308)

Calculation of Constrained Stress in Expansive Mortar with a Composite Creep Model

Advances in Materials Science and Engineering, 2016
The creep phenomenon of hardening cement paste mixed with an expansive additive was modeled by considering the creep performance of hydration products of cement and expansive additive.
Hyeonggil Choi, Bongsuk Cho
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Effect of polymeric aluminum on hydration hardening characteristics of lithium slag-cement composite cementitious materials

矿业科学学报, 2019
Lithium slag is used as a supplementary cementitious material in cement-based materials due to its pozzolanic activity,but its lower hydration activity leads to a decline in the mechanical properties and durability of the cement-based material.In this ...
Wang Yiren, Wang Dongmin, Zhai Mengyi, Li Xiaolong   +3 more
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Applications of Solid-State Nuclear Magnetic Resonance Spectroscopy in Cementitious Materials Research

Chinese Journal of Magnetic Resonance, 2020
Cementitious materials have complex compositions and structures. Characterization of the hydration processes, and compositions and structure of productions of cementitious materials is challenging.
WANG Ke, ZHANG Ying-hua, LI Yu-qing, ZOU Ding-hua   +3 more
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METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST [PDF]

, 2003
Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions.
Williams, Thomas E., Millheim, Keith, King, Buddy   +2 more
openaire   +10 more sources

Physico-chemical research of the processes of hydration of cements [PDF]

E3S Web of Conferences
The activating effect of phosphoanhydrite on cement hydration is strongly supported by the results obtained from various physico-chemical analyses, including IR spectroscopy, X-ray phase analysis, and differential thermal analysis.
Lutfullaeva Nargiza, Egamberdiev Elmurod, Ergashev Yorqinjon, Alamov Umid, Shamuratova Shohida, Usmanxadjaeva Iroda, Tukhtamushova Anisakhon, Saparov Bobur   +7 more
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Improvement of Mechanical Properties and Microstructure of Cementitious Materials in a Hot-Dry Environment

Crystals, 2022
The hot-dry environment in high geothermal tunnels negatively affects the development of properties of cementitious materials. In order to improve the mechanical properties of cementitious materials in such environments, a proper curing system was ...
Zhanjun Xu, Xiaokun Han, Kaiwen Feng, Weizhen Zhang, Kunlin Ma   +4 more
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Early and late hydration of supersulphated cements of blast furnace slag with fluorgypsum

Materiales de Construccion, 2015
The hydration, strength development and composition of hydration products of supersulphated cements were characterized from the first 48 hours up to 360 days.
M. E. Bazaldúa-Medellín, A. F. Fuentes, A. Gorokhovsky, J. I. Escalante-García   +3 more
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Effect of hydration products composition on high temperature resistance of geopolymers

Journal of Materials Research and Technology
Geopolymer exhibits better high temperature resistance than Portland cement, which makes it an excellent alternative cementitious component for fireproof building materials.
Yulong Liu, Chao Li, Jinbang Wang, Dong Li, Zonghui Zhou, Xiuzhi Zhang, Yongbo Huang, Peng Du   +7 more
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Discrete Optimization of Software-Controlled Modes of Heat Treatment of Concrete Products in Heat-Technological Facilities

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2019
In the article the technique of an assessment of modes of operation of the heat engineering equipment used for heat treatment of concrete products in the conditions of programcontrolled heat supply according to the pattern of “heating – isothermal ...
A. M. Niyakovskii, V. N. Romaniuk, Yu. V. Yatskevich, A. N. Chichko   +3 more
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Influences of Waste Concrete Powder on the Strength Development and Hydration Products of Mortar Containing Fly Ash

Medžiagotyra, 2022
During recycling waste concrete, a large amount of waste concrete powder (WCP) is generated. However, efficient utilization of WCP remains an unresolved issue.
Huashan YANG, Yujun CHE
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