Results 91 to 100 of about 387,480 (278)
Yield stress of aerated cement paste [PDF]
Cement and Concrete Research 127 (2020) p105922, 2019 Yield stress of aerated cement paste is studied. Samples are prepared by mixing aqueous foam with cement paste, which allows controlling bubble size, gas volume fraction and yield stress of the cement paste. Two distinct behaviors are observed depending on the surfactant used to prepare the precursor aqueous foam: (i) For a surfactant with low ...
arxiv
Damage Localisation in Fresh Cement Mortar Observed via In Situ (Timelapse) X-ray μCT imaging [PDF]
Cement and Concrete Composites, 2024, 154, 105736, ISSN 0958-9465This paper presents the outcome of a study focused on the evolution of internal damage in fresh cement mortar over 25 hours of hardening. In situ timelapse X-ray computed micro-tomography ({\mu}XCT) imaging method was used to detect internal damage and capture its evolution in cement mortar hardening.
arxiv +1 more source
Effect of Polymer Additives on Improvement of Concrete Properties
Advances in Polymer Technology, Volume 2025, Issue 1, 2025.This article presents a review of achievements in the research aimed at improving the main building material—concrete—along with its physical, mechanical, and operational properties. As is well known, in the near future, the role of concrete will continue to be primary in the construction of buildings and structures due to increasing demand.
Neila Ye. Bekturganova +2 more
wiley +1 more source
Interaction between cements with different composition and superplasticizers
Materiales de Construccion, 2012 The slump behavior of ordinary Portland-, pozzolanic (red brick powder)-, sulfate resistant-, and limestone cement pastes caused by ≤ 1% additions of polycondensates and polycarboxylates superplasticizers are monitored for up to 90 minutes.
H. Y. Ghorab +2 more
doaj +1 more source
Study on Dispersion, Adsorption, and Hydration Effects of Polycarboxylate Superplasticizers with Different Side Chain Structures in Reference Cement and Belite Cement [PDF]
, 2023 Yunhui Fang +9 more
openalex +1 more source
Effect of Vital Pulp Therapy Biomaterials on Tooth Discolouration: A Review of the Literature
International Journal of Biomaterials, Volume 2025, Issue 1, 2025.Tooth discolouration is addressed as a serious consequence of different traumatic injuries as well as an undesirable outcome of various dental and maxillofacial treatments. In addition, the colour changes of teeth are one of the major concerns and chief complaints of dental patients, specifically when the corresponding injuries and/or treatments occur ...
Maedeh Gilvari Sarshari +3 more
wiley +1 more source
THE BOND STRENGTH OF A CALCIUM SULFOALUMINATE CEMENT-BASED REPAIR MORTAR
Ceramics-Silikáty, 2020 This study investigated the interfacial bond strength between a calcium sulfoaluminate cement (CSA) mortar as a repair material and an old substrate. The surface of the old substrate was treated to have a different roughness (smooth, slightly rough and ...
Xumin Li, Chuanmin Xu, Du Peng
doaj +1 more source
Cement Dust Exposure and Risk of Hyperglycemia and Overweight among Artisans and Residents Close to a Cement Factory in Sokoto, Nigeria [PDF]
The potential health risks of cement dust exposure are increasingly raising concern worldwide as the cement industry expands in response to rising cement demand. This necessitates the need to determine the nature of the risks in order to develop appropriate measures.
arxiv +1 more source
Stability criterion for fresh cement foams [PDF]
Cement and Concrete Research (2019) 125, p105865, 2019 We prepare and study cement foam samples with well-controlled structure, i.e. containing monodisperse bubbles. We observe that the foam structure often changes before cement setting and identify ripening as the major destabilization mechanism at stake.
arxiv
Case Studies in Construction MaterialsNano-silica (NS) exhibits significant potential for enhancing the properties of cement materials. However, its effectiveness in improving the properties of cement-based materials is hindered by the poor dispersion of NS within the cement matrix.
Tonghuan Zhang +5 more
doaj