Experimental study of conventional concrete under thermal fatigue

2019 ◽  
Author(s):  
J.M.A. ALMEIDA ◽  
B. BIAZETTO ◽  
A.G. GRAEFF ◽  
L.C.P. SILVA FILHO
Keyword(s):  
Experimental Study ◽  
Thermal Fatigue ◽  
Conventional Concrete

Analysis of Structure Characteristics and Improvement of Turbo-Supercharger Bearing

2014 ◽  
Vol 496-500 ◽  
pp. 707-710
Author(s):  
Hui Gan ◽  
Kun Yu Yang ◽  
Xiao Liang Yang
Keyword(s):  
Experimental Study ◽  
Fatigue Damage ◽  
Thermal Fatigue ◽  
Structural Characteristics ◽  
Structure Characteristics ◽  
Design Scheme ◽  
Friction Bearing ◽  
Adjustment Test

The reliability of the gas turbo-supercharger can be affected by the faults such as the cauterization of the floating bearing of the supercharger, the carbonization of the rotor and getting stuck, the deformation of the blade and heat cracking of the nozzle ring. The design scheme is proposed by using friction bearing taking the place of the floating bearing, because the main reason of the cauterization of the bearing is the increase of the inside clearance of the floating sleeve, which is testified by the actual rpm measurement of the floating sleeve on the floating bearing and the adjustment test of the inside and outside clearances of the bearing. The experimental study on the structural characteristics of turbocharger bearing effectively prevents turbo-supercharger floating bearing from being cauterized, solves the problem of thermal fatigue damage, and improves turbocharger reliability.

scholarly journals An Experimental Study on the Thermal Fatigue of Rocks

1983 ◽  
Vol 99 (1140) ◽  
pp. 81-86
Author(s):  
Ryoji KOBAYASHI ◽  
Noboru SAKAI ◽  
Koji MATSUKI
Keyword(s):  
Experimental Study ◽  
Thermal Fatigue

scholarly journals Experimental study of low carbon emission alternative concrete

2021 ◽  
Vol 1197 (1) ◽  
pp. 012013
Author(s):  
Muddana Surya Prasanth ◽  
Raghava Karumudi
Keyword(s):  
Experimental Study ◽  
Carbon Emission ◽  
Steel Slag ◽  
Low Carbon ◽  
Conventional Concrete ◽  
Curing Conditions ◽  
Carbon Dioxide Gas ◽  
Alternative Materials ◽  
Ambient Curing ◽  
Low Carbon Emission

Abstract Urbanization and mass construction of housing will increase the consumption of cement and available natural resources such as sand and water. The production of cement generated from various industries leads to the emission of carbon dioxide gas in huge quantities into the atmosphere and creates serious problems in handling and disposal. So, the replacement of conventional materials with alternative materials for the preparation of concrete is needed. If the alternative cementitious and industrial waste materials are found suitable in replacing the ingredients of concrete then it can reduce the cost of construction. The present paper represents an experimental study of low carbon emission alternative concrete by replacing conventional concrete materials with alternative materials like geopolymer as binding material, copper and ferrous slag as fine aggregates, steel slag as coarse aggregates, and alkaline solution as an activator. Study made to examine the properties of low carbon emission alternative concrete proposed. The fresh and hardened state characteristics of low carbon emission alternative concrete are evaluated for both oven and ambient curing conditions. It is noticed that the time taken to achieve the strength by oven curing is less than ambient curing but had no major difference in load-carrying capacity and the results obtained are in good concurrence with conventional concrete.

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