The effect of undrained heating on a fluid-saturated hardened cement paste [PDF]
, 2008 The effect of undrained heating on volume change and induced pore pressure increase is an important point to properly understand the behaviour and evaluate the integrity of an oil well cement sheath submitted to rapid temperature changes. This thermal pressurization of the pore fluid is due to the discrepancy between the thermal expansion coefficients ...
Ghabezloo, Siavash +2 more
arxiv +6 more sources
A reaction-diffusion model for the hydration/setting of cement [PDF]
Phys. Rev. E 53, (3), 2629-37 (1996)., 1995 We propose a heterogeneous reaction-diffusion model for the hydration and setting of cement. The model is based on diffusional ion transport and on cement specific chemical dissolution/precipitation reactions under spatial heterogeneous solid/liquid conditions.
A. Nonat +10 more
arxiv +3 more sources
High-Power Fiber Laser Cutting for 50-mm-Thick Cement-Based Materials [PDF]
, 2020 This experimental research highlights the applicability of laser cutting to cement-based materials using multimode fiber lasers. A 9 kW multimode fiber laser is used, and the experimental variables are the water-to-cement ratio, laser speed, and material
Lee, Dongkyoung +2 more
core +1 more source
Prediction of Loss on Ignition of Ternary Cement Containing Coal Bottom Ash and Limestone Using Central Composite Design [PDF]
, 2019 The effect of CBA/CBA-L ratio and the cement replacement on the Loss on ignition (LOI) of ternary cement blends was investigated using central composite design approach in the prediction of LOI of ternary cement blend comprising of Ordinary Portland ...
Makarfi, Isa Yusuf +2 more
core +2 more sources
An Investigation of the Mechanical and Physical Characteristics of Cement Paste Incorporating Different Air Entraining Agents using X-ray Micro-Computed Tomography [PDF]
, 2020 Improving the thermal insulation properties of cement-based materials is the key to reducing energy loss and consumption in buildings. Lightweight cement-based composites can be used efficiently for this purpose, as a structural material with load ...
Abd Elrahman, Mohamed +5 more
core +1 more source
New calcium carbonate-based cements for bone reconstruction [PDF]
, 2005 The feasibility of calcium carbonate-based cements involving the re-crystallization of metastable calcium carbonate varieties has been demonstrated. Two cement compositions were obtained by mixing either calcium carbonate phases (cement A) or a calcium ...
Combes, Christèle +4 more
core +1 more source
Photocatalytic Activity and Mechanical Properties of Cements Modified with TiO2/N [PDF]
, 2019 In this paper, studies of the mechanical properties and photocatalytic activity of new photoactive cement mortars are presented. The new building materials were obtained by the addition of 1, 3, and 5 wt % (based on the cement content) of nitrogen ...
Janus, Magdalena +5 more
core +1 more source
Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste [PDF]
, 2008 In this paper, the applicability of the ultrasonic wave transmission method to estimate the initial setting time of an arbitrary cement paste is discussed. Ultrasonic pulse velocity measurements were fully automated and measured continuously.
Chotard +19 more
core +2 more sources
Preparation, physical-chemical characterisation and cytocompatibility of calcium carbonate cements [PDF]
, 2006 The feasibility of calcium carbonate cements involving the recrystallisation of metastable calcium carbonate varieties has been demonstrated. Calcium carbonate cement compositions presented in this paper can be prepared straightforwardly by simply mixing
Aizenberg +67 more
core +2 more sources
Modelling the effects of waste components on cement hydration [PDF]
, 2000 Ordinary Portland Cement (OPC) is often used for the Solidification/Stabilization (S/S) of waste containing heavy metals and salts. These waste componenents will precipitate in the form of insoluble compounds onto unreacted cement clinker grains ...
Brouwers, H.J.H., Eijk, R.J. van
core +6 more sources