Essays about: "hydration heat"

Showing result 1 - 5 of 7 essays containing the words hydration heat.

  1. 1. Development and Evaluation of an Enzyme-Based Sunscreen

    University essay from Lunds universitet/Bioteknik; Lunds universitet/Bioteknik (master)

    Author : Karolina Eriksson Torfgård; [2023]
    Keywords : Enzyme activity; UV-filter; Protease; Biotechnology; Technology and Engineering;

    Abstract : Ultraviolet radiation (UVR), specifically of UVA and UVB, has been associated with the development of both photoaging and photo-carcinogenesis, potentially leading to cancer. The use of sun protection in the form of UV filters is known to minimize these damages. READ MORE

  3. 2. Modelling of a Heat Conduction Calorimeter Used in Cement Plant Automation

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Hassan Alzeidi; [2022]
    Keywords : Technology and Engineering;

    Abstract : A model is used to describe a system physically or mathematically and to give information about changes in the system variables. Physical knowledge about the system and its quantities can be useful to build a physical model obeying the laws of nature. READ MORE

  4. 3. Simulation of Hardening of the MahanaKhon Tower Mat Foundation

    University essay from KTH/Betongbyggnad

    Author : Zakaria Kazi-tani; [2019]
    Keywords : Hydration; MahanaKhon tower; mat foundation; young concrete; temperature development; thermal stresses; cracking; fly ash; finite element analysis; COMSOL Multiphysics; Hydratation; MahanaKhon tower; bottenplatta; ung betong; temperaturutveckling; termiska spänningar; sprickbildning; flygaska; finita elementanalys; COMSOL Multiphysics;

    Abstract : Cement hydration is the result of a series of simultaneous chemical reactions occurring during the production of concrete. An excessive amount of heat is generated, which consequently may give rise to thermal stresses and cause early age cracks in concrete that may affect its structural integrity, and load bearing capacity. READ MORE

  5. 4. Alternative methods to prevent thermal cracking in concrete

    University essay from

    Author : Alexander Barchin; Navid Sedighi; [2019]
    Keywords : Massive concrete structures; heat development; cement hydration; temperature reduction; cracking; fly ash; ice; coarse aggregates; cooling methods; practical tests.; Massiva betongkonstruktioner; värmeutveckling; cementhydrataion; temperaturreducering; sprickbildning; flygaska; is; grov ballast; kylningsmetoder praktiska försök.;

    Abstract : In the construction industry, concrete is the most common material, because of its good properties such as compressive strength and endurance. Concrete is a composition of several different materials where one of the main components is cement. When the hydration process starts, large amount of heat is generated. READ MORE

  6. 5. Prediction of early age and time dependent deformations in a massive concrete structure

    University essay from KTH/Betongbyggnad

    Author : Ali Aghili; Haris Ribac; [2018]
    Keywords : Early age concrete; hydration of cement; Storfinnforsen; ConTeSt; crack risk; temperature development; strain; mass concrete structures; measurement plan; Ung betong; hydratation av cement; Storfinnforsens kraftverk; ConTeSt; sprickrisk; temperatur; töjning; massiva konstruktioner; mätningsplanering;

    Abstract : The heat development that occurs due to the hydration of cement is important to consider during casting of massive concrete structures. By using computer programs that are based on finite element methods (FEM), simulations can be performed on the heat- and strength development. READ MORE