A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ceolitų panaudojimo hidrotechninėse cementinėse sistemose tyrimas ; The investigation of zeolite use in the hydrotechnical cement systems
Construction industry is increasingly being used in combination and variety of natural and synthetic zeolites spectrum. A study carried out using synthetic zeolite - hydrasodalite (Na6 + x (SiAlO4) 6 (OH) x • nH2O) modified hydrasodalite silicon production and Fair play - fume SiO2. With the recent pozzolanic additives investigated the interaction with cement, concrete changes in the strength, density and retention properties. Studies carried out in the preparation of the samples with 2%, 5%, 10% and 15% by weight of pozzolanic additives relations. It was determined, which affect the weight of cement hydration temperature. Fixed specimens the strength and the density of 3, 7 and 28 days. Set of samples absorption after 28 days. Compressive strength of cement stone without the use of additive and longer duration of hydration from three to 28 days increased from 59 to 80 MPa. A similar dependence is observed in samples with cement and pozzolanic additives. Hydration with increasing duration of the compressive strength increases. To examine the conditions had the highest compressive strength of samples with 10% modified hydrasodalite additives after 28 days, compressive strength increases to 101 MPa. It can be assumed that hydrasodalite, and SiO2 modified hydrasodalite fume pozzolanic properties are not immediate, but come on after a longer duration of hydration, etc. Y. after 28 days. During the hydration from 16 to 28 days, absorption decreases from 13.41% to 9.04% (at 2% hydrasodalite content). Using 5% SiO2 fume emissions reduced absorption of cement stone to 8.41%.
Ceolitų panaudojimo hidrotechninėse cementinėse sistemose tyrimas ; The investigation of zeolite use in the hydrotechnical cement systems
Construction industry is increasingly being used in combination and variety of natural and synthetic zeolites spectrum. A study carried out using synthetic zeolite - hydrasodalite (Na6 + x (SiAlO4) 6 (OH) x • nH2O) modified hydrasodalite silicon production and Fair play - fume SiO2. With the recent pozzolanic additives investigated the interaction with cement, concrete changes in the strength, density and retention properties. Studies carried out in the preparation of the samples with 2%, 5%, 10% and 15% by weight of pozzolanic additives relations. It was determined, which affect the weight of cement hydration temperature. Fixed specimens the strength and the density of 3, 7 and 28 days. Set of samples absorption after 28 days. Compressive strength of cement stone without the use of additive and longer duration of hydration from three to 28 days increased from 59 to 80 MPa. A similar dependence is observed in samples with cement and pozzolanic additives. Hydration with increasing duration of the compressive strength increases. To examine the conditions had the highest compressive strength of samples with 10% modified hydrasodalite additives after 28 days, compressive strength increases to 101 MPa. It can be assumed that hydrasodalite, and SiO2 modified hydrasodalite fume pozzolanic properties are not immediate, but come on after a longer duration of hydration, etc. Y. after 28 days. During the hydration from 16 to 28 days, absorption decreases from 13.41% to 9.04% (at 2% hydrasodalite content). Using 5% SiO2 fume emissions reduced absorption of cement stone to 8.41%.
Ceolitų panaudojimo hidrotechninėse cementinėse sistemose tyrimas ; The investigation of zeolite use in the hydrotechnical cement systems
Dirsė, Liudvikas (author) / Vaičiukynas, Vilimantas
2011-06-02
Theses
Electronic Resource
Lithuanian , English
DDC:
690
Rezervavimo galimybių SCADA sistemose tyrimas ; Investigation of redundant SCADA systems
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Rezervavimo galimybių SCADA sistemose tyrimas ; Investigation of redundant SCADA systems
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Slenkančiųjų klojinių panaudojimo tyrimas / ; Research of using sliding formwork.
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