Abstract
The purpose of this study was to evaluate the practical application of high-flowing concrete for a steel–concrete panel (SCP) module for a liquefied natural gas (LNG) storage tank. We evaluated the physical properties and filling performance of the developed concrete for the SCP module. First, slump tests were performed to evaluate the performance of the proposed standards for the filling tests. All the concrete mixes showed satisfactory performance. Based on the results of the previous study, the reliability of the required time measured using the T500 test and the rheometer results measured before and after pumping was 0.94, indicating that segregation and blocking should not occur. L-box and U-box tests were conducted before and after pumping. All the recommended standards showed satisfactory performance. The SCP structural module for LNG storage tanks was fabricated to a full scale to evaluate its practical application at the final site. Satisfactory filling performance was confirmed for all the specimens.
Key Words
LNG storage tanks; rheology; standards; steel-concrete panel
Address
(1) Dong Kyu Lee:
Department of Safety Engineering, Dongguk University-Gyeongju, 123 Dongdae-ro, Gyeongju 38066, Republic of Korea;
(2) Jae Seon Kim:
National Disaster Management Research Institute, Ulsan, 44538, Republic of Korea;
(3) Myoung Sung Choi:
Department of Civil and Environmental Engineering, Dankook University, Gyeonggido Jukjeon-ro 152, Republic of Korea.
Muhammad Taj, Mohammad Amien Khadimallah, Shahzad Ali Chattah, Ikram Ahmad, Sami Alghamdi, Muzamal Hussain, Rana Muhammad Akram Muntazir, Faisal Al-Thobiani, Muhammad Safeer, Muhammad Naeem Mohsin, Faisal Mehmood Butt and Zafer Iqbal
Abstract
Microtubules in the cell are influenced by internal and external stimulation and play an important part in conveying protein substances and in carrying out medications to the intended targets. Waves are produced during these functions and in order to control the biological cell functions, it is important to know the wave velocities of microtubules. Owing to cylindrical shell shaped and mechanically elastic and orthotropic, cylindrical shell model based on gradient elasticity theory has been used. Wave velocities of the protein microtubule are carried out by considering Love's thin shell theory and Navier solution. Also, the effect of size parameter and other variables on the results are investigated.
Address
(1) Muhammad Taj, Muhammad Safeer:
Department of Mathematics, University of Azad Jammu and Kashmir, Muzaffarabad, 1300, Azad Kashmir, Pakistan;
(2) Mohammad Amien Khadimallah:
Department of Civil Engineering, College of Engineering in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia;
(3) Shahzad Ali Chattah:
Department of Chemistry, Government College University Faisalabad, 38000, Pakistan;
(4) Ikram Ahmad:
Department of Chemistry, University of Sahiwal, Sahiwal, 57000, Faisalabad, Pakistan;
(5) Sami Alghamdi:
Electrical and Computer Engineering Department, King Abdulaziz University, Jeddah, Saudi Arabia;
(6) Muzamal Hussain:
Department of Mathematics, University of Sahiwal, Sahiwal, 57000, Faisalabad, Pakistan;
(7) Rana Muhammad Akram Muntazir:
Department of Mathematics, Lahore Leads University, 54792, Lahore, Pakistan;
(8) Faisal Al-Thobiani:
Marine Engineering Department, Faculty of Maritime Studies, King Abdulaziz University, Jeddah, Saudi Arabia;
(9) Muhammad Naeem Mohsin:
Institute for Islamic Theological Studies, University of Vienna, Schenkenstrabe 8-10,1010, Vienna, Austria;
(10) Faisal Mehmood Butt:
Department of Electrical Engineering, University of Azad Jammu and Kashmir, Pakistan;
(11) Zafer Iqbal:
Department of Mathematics, University of Sargodha, Sargodha, Punjab, Pakistan;
(12) Zafer Iqbal:
Department of Mathematics, University of Mianwali, Punjab, Pakistan.
