Essays about: "thermal properties of concrete"

Showing result 1 - 5 of 19 essays containing the words thermal properties of concrete.

  1. 1. Cracking in a slender concrete slab due to thermal variation

    University essay from KTH/Betongbyggnad

    Author : Johan Mattsson; Fredrik Åman; [2019]
    Keywords : Concrete slab; Concrete; Finite element analysis; Cracking; Thermal variation; Seasonal temperature; Abaqus; Brigade Plus; Betonggrund; Betong; Finit element analys; Sprickbildning; Termiska laster; Omgivningstemperature; Abaqus; Brigade Plus;

    Abstract : Concrete slabs used in thepulp and paper industries are often situated outdoors, which means that theslabs are exposed to temperature variations due to different weatherconditions. These temperature variations together with operational temperaturesassociated with the manufacturing process, may introduce high temperaturegradients in the concrete. READ MORE

  2. 2. Basic Creep of Young Concrete - Sensitivity in the Evaluation Method

    University essay from KTH/Betongbyggnad; KTH/Betongbyggnad

    Author : Benar Ekmat; Natalea Hermes; [2019]
    Keywords : thermal cracking; young concrete; creep; Linear Logarithmic Model; temperature development; average strain; sensitivity.; Temperatursprickor; ung betong; krypning; Linjär Logaritmisk Modell; temperaturutveckling; töjning; känslighet.;

    Abstract : Creep is defined as deformation that takes place under constant load after an initial elastic response. This thesis focuses on a material property problem area that concerns stress analysis. Focus is on stress development considering creep deformations occurring when a concrete structure is under load, i.e. READ MORE

  3. 3. Investigating the performance of hempcrete as an option for retrofitting masonry buildings

    University essay from Lunds universitet/Institutionen för arkitektur och byggd miljö; Lunds universitet/Energi och ByggnadsDesign

    Author : Henry Lanham; [2019]
    Keywords : Hempcrete; lime-hemp Miljöbyggnad; moisture safety; future climate; energy use; mould risk.; Technology and Engineering;

    Abstract : One fifth of the energy consumed by buildings in Sweden is by those built before 1945, many of them constructed from solid masonry walls. Improving their heating energy consumption is a challenge we must face in light of human’s impact on climate change as well as increasing energy costs. READ MORE

  4. 4. Analysis of spatial-temporal pattern of Land Surface Temperature (LST) due to NDVI and elevation in Ilorin, Nigeria

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Elijah A Njoku; [2019]
    Keywords : GIS; LST; Vegetation cover; Ilorin; Elevation; Urban Heat Island; Earth and Environmental Sciences;

    Abstract : The rate of global urbanization in the 21st century has been unprecedented especially in the African and the Asian continents. Urbanization typically causes a removal of natural vegetation and replacement of same with impervious and non-evaporative urban materials with high heat capacity and low solar reflectivity. READ MORE

  5. 5. 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