Study on Influence Factors of High Temperature and Water Stability of Stone Matrix Asphalt

2012 ◽  
Vol 602-604 ◽  
pp. 1014-1020
Author(s):  
Van Thanh Dang ◽  
Pei Feng Cheng
Keyword(s):  
High Temperature ◽  
Raw Materials ◽  
Influence Factors ◽  
Water Stability ◽  
Factors Affecting ◽  
Modified Asphalt ◽  
Stone Matrix Asphalt ◽  
Number Of Factors ◽  
The Impact ◽  
Stone Matrix

There are a number of factors affecting on the high temperature and water stability of Stone Matrix Asphalt (SMA). However, under a concrete condition of traffic, climate and construction, together with reliable raw materials, the proportion of various raw materials are the main factors. SMA-16 is taken as an example, by using the Rutting test, Residential stability test and Freezing–thaw cycling test for analysing the impact of the modified asphalt, fiber and mineral filler proportion on SMA. The result shows that these three factors significantly impacted on the high temperature and water stability of SMA with the optimal values of 6.0-6.2%, 0.31% and 10-11%, respectively.

Research on Influence of Different Fibers on Pavement Performance of SMA

2012 ◽  
Vol 253-255 ◽  
pp. 599-602 ◽  
Author(s):  
Gang Dong ◽  
Nan Xiang Zheng ◽  
Lei Tang Qie
Keyword(s):  
Comparative Analysis ◽  
High Temperature ◽  
Pavement Performance ◽  
Water Stability ◽  
Mineral Fiber ◽  
Stone Matrix Asphalt ◽  
Temperature Performance ◽  
Influence Mechanism ◽  
Different Types ◽  
Stone Matrix

The influence and influence mechanism of three different kinds of fibers, xylon fiber, polyester fiber and basalt mineral fiber, on the pavement performance of Stone Matrix Asphalt (SMA) are investigated for optimizing the pavement performance of SMA in this paper, by comparative analysis of high temperature performance, water stability and low temperature performance of SMA with the three different types of fibers. The results suggest that there are large differences in the performance of SMA with the three kinds of fibers above mentioned, because of the different dispersibility and adsorption capacity of each fiber, and SMA with basalt mineral fiber has the best behavior in pavement performance.

Impact of climatic conditions on the parameters of failure flow of military vehicles

2021 ◽  
pp. 095440702110202
Author(s):  
Nikolaj Dobrzinskij ◽  
Algimantas Fedaravicius ◽  
Kestutis Pilkauskas ◽  
Egidijus Slizys
Keyword(s):  
Climatic Factors ◽  
Armed Forces ◽  
Climatic Conditions ◽  
Operating Conditions ◽  
Technical Equipment ◽  
Factors Affecting ◽  
Military Vehicles ◽  
Equipment Reliability ◽  
Number Of Factors ◽  
The Impact

Relevance of the article is based on participation of armed forces in various operations and exercises, where reliability of machinery is one of the most important factors. Transportation of soldiers as well as completion of variety of tasks is ensured by properly functioning technical equipment. Reliability of military vehicles – armoured SISU E13TP Finnish built and HMMWV M1025 USA built were selected as the object of the article. Impact of climatic conditions on reliability of the vehicles exploited in southwestern part of the Atlantic continental forest area is researched by a case study of the vehicles exploitation under conditions of the climate of Lithuania. Reliability of military vehicles depends on a number of factors such as properties of the vehicles and external conditions of their operation. Their systems and mechanisms are influenced by a number of factors that cause different failures. Climatic conditions represent one of the factors of operating load which is directly dependent on the climate zone. Therefore, assessment of the reliability is started with the analysis of climatic factors affecting operating conditions of the vehicles. Relationship between the impact of climatic factors and failure flow of the vehicles is presented and discussed.

Applied Research of the Modifying Agent of Rubber Plastic Composite (MaR) in Asphalt Mixture

2013 ◽  
Vol 477-478 ◽  
pp. 1175-1178
Author(s):  
Ling Zou ◽  
Jing Wei Ne ◽  
Weng Gang Zhang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Bending Test ◽  
Water Stability ◽  
Modified Asphalt ◽  
Modifying Agent ◽  
Temperature Performance ◽  
Splitting Test ◽  
Low Temperature Performance

70# and 90# matrix asphalt mixture with MaR were studied through dynamic modulus test, rutting test, freeze-thaw splitting test, bending test to study the applicability of the Modifying agent of rubber plastic compound (MaR) in matrix asphalt mixture.Test results were Compared with SBSI-C modified asphalt mixture.The results indicate that: high-temperature stability of MaR+70# asphalt mixture is as well as SBSI-C modified asphalt mixture,and is bettere than MaR+90# asphalt mixture; water stability of MaR+90# asphalt mixture is bettere than SBSI-C modified asphalt mixture and MaR+70# asphalt mixture; low temperature performance of MaR+90# asphalt mixture is bettere than MaR+70# asphalt mixture, but is worse than modified asphalt mixture SBSI-C ; MaR+70# asphalt mixture can be first used in area of resisting high temperature and rutting, MaR+90# asphalt mixture can be used if the water stability performance and low temperature performance are considered.

Study on the Performance of Nano Calcium Carbonate Modified Asphalt Concrete AC-13

2012 ◽  
Vol 450-451 ◽  
pp. 503-507 ◽  
Author(s):  
Xiu Hong Hao ◽  
Ai Qin Zhang ◽  
Wei Yang
Keyword(s):  
High Temperature ◽  
Calcium Carbonate ◽  
Dynamic Stability ◽  
Asphalt Concrete ◽  
Water Stability ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Residual Stability

To make nano calcium carbonate as the modifier, firstly the best proportion of nano calcium carbonate is determined as 6% by comparing the influences of different proportions of nano calcium carbonate to the indexes of asphalt. Then the influence of mixing with nano calcium carbonate to the performance of asphalt concrete AC-13 has been studied. Tests show that, the mixing of 6% nano calcium carbonate has improved the dynamic stability of asphalt concrete AC-13 from 991 times/mm to 1269 times/mm; the residual stability from 0.87 to 0.94. This indicates that after mixing with nano calcium carbonate, both the high temperature performance and water stability of asphalt concrete have been improved.

Study on the Influence Factors of Real Estate Price Based on Regression Model — The Case of Jilin City

2011 ◽  
Vol 117-119 ◽  
pp. 1547-1551
Author(s):  
Xi Li Tan ◽  
Han Zhou ◽  
Ying Song Xu
Keyword(s):  
Real Estate ◽  
Regression Model ◽  
Influence Factors ◽  
Multiple Linear Regression Model ◽  
Factors Affecting ◽  
The Real Estate ◽  
Real Estate Price ◽  
Spss Software ◽  
Countermeasures And Suggestions ◽  
The Impact

Real estate price has been one of the hottest discussion topics, especially in recent years, it becomes the focus of attention. In this paper, we aim to study the impact of economic factors on real estate price. By multiple linear regression model and SPSS software, we analyze four economic indicators affecting the real estate price of Jilin city, and make some amendments and testings, the conclusions show the consumption level and housing construction area are important factors affecting the price trend. On this basis, we further to give the corresponding countermeasures and suggestions.

Carbonation Experimental Study on Thermal Insulation Glazed Hollow Bead Concrete

2013 ◽  
Vol 639-640 ◽  
pp. 325-328
Author(s):  
Yan Jia Guo ◽  
Zhu Li ◽  
Yuan Zhen Liu ◽  
Shang Song Qin
Keyword(s):  
Thermal Conductivity ◽  
Thermal Insulation ◽  
Raw Materials ◽  
Influence Factors ◽  
Intensity Level ◽  
Construction Technology ◽  
Test Results ◽  
Ordinary Concrete ◽  
The Impact ◽  
Better Than

Based on the compressive strength, the thermal conductivity, the elastic modulus and the steel bond strength of thermal insulation glazed hollow bead concrete, referring to the carbonation mechanism and the influence factors of the ordinary concrete, considering the impact of raw materials and the influence of construction technology, the study on thermal insulation glazed hollow bead concrete anti-carbonation was proposed. From the test results, it can conclude that for the same intensity level, the anti-carbonation capacity of the thermal insulation glazed hollow bead concrete is better than that of the ordinary concrete. For different strength grade of thermal insulation glazed hollow bead concrete, to some extend, the higher the intensity level is, the stronger the ability of thermal insulation glazed hollow bead concrete anti-carbonation is.

scholarly journals Study on Laboratory Experimental Pavement Performances of SEAM Modified Asphalt Mixture

2019 ◽  
Vol 136 ◽  
pp. 03010
Author(s):  
Ma Qingna ◽  
Zhao Zhiqin ◽  
Xu Qian ◽  
Sun Feng
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Water Stability ◽  
High Temperature Stability ◽  
Modified Asphalt ◽  
The Road ◽  
Road Performance ◽  
Property Index

Adding sulphur dilution asphalt modifier SEAM to asphalt mixture is not only a modifier of asphalt mixture, but also an additive of asphalt mixture. When the modifier is added into the asphalt mixture, the road performance of the asphalt mixture can be improved. This paper studies SEAM modified asphalt mixture the Marshall property index, temperature stability, Water stability and fatigue feature in the Laboratory. On the based of the result of the experiment and analysis, SEAM can improve the high temperature stability, Water stability and fatigue feature. But the low temperature stability can’t improve.

The Influence Factors of Silicon Steel Magnetic Property

2014 ◽  
Vol 884-885 ◽  
pp. 345-348 ◽  
Author(s):  
Lei Shang ◽  
Hai Li Yang ◽  
Hong Xu ◽  
Yun Gang Li
Keyword(s):  
Magnetic Properties ◽  
Magnetic Property ◽  
Chemical Composition ◽  
Influence Factors ◽  
Dimensional Accuracy ◽  
Silicon Steel ◽  
Factors Affecting ◽  
Size Type ◽  
The Impact

Magnetic properties of silicon steel mainly depend on the internal organizational structure and chemical composition. The main factors affecting magnetic properties of silicon steel are analyzed and summarized, including grain size, inclusions (size, type, quantity, and morphology), crystal texture, internal stress, dimensional accuracy, the surface quality of steels, and chemical composition. The impact mechanism of the factors influencing silicon steel magnetic property is explained and these influence factors are interrelated.

scholarly journals The Determinants Of Population Health Spatial Disparities

2014 ◽  
Vol 17 (4) ◽  
pp. 173-185 ◽  
Author(s):  
Emilia Modranka ◽  
Jadwiga Suchecka
Keyword(s):  
Social Development ◽  
Access To Health Care ◽  
Health Care Services ◽  
Empirical Studies ◽  
Factors Affecting ◽  
Explanatory Variables ◽  
Spatial Disparities ◽  
Care Services ◽  
Number Of Factors ◽  
The Impact

Health of the population is one of the basic factors of social development. The results of empirical studies indicate a number of factors determining the level of health of the population related to access to health care services, the level of environmental pollution and the wealth of society. It must be assumed that the observed disparities in the health depend on distributions of particular determinants. The aim of the article is to assess the significance of the main factors affecting the occurrence of spatial disparities in the level of social development districts NTS-4 in terms of health of the population. The analysis was based on estimates of the Spatial Durbin Model (SDM) which takes into account the impact of neighborhood spatial units on level of dependent variable and the explanatory variables. The size of the level of social development in terms of health of the population in the study was approximate by the aggregate value of the index, which is the local component of the Local Human Development Index LHDI.

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