Research on the Application of Cement Stabilized Cool Regeneration of the Highway Maintenance

2011 ◽  
Vol 284-286 ◽  
pp. 470-474 ◽  
Author(s):  
Shan Yan ◽  
Qi Hua Zheng

Based on practical engineering this paper introduced cement stabilized cool regeneration technology and application test results. It expounds application of cement stabilized cool regeneration technology and points out the advantages of cold recycling technology; It can make full use of the dead mile of the original way, and saving a lot of building materials. It Avoid waste material to protect the ecological environment; It saved the resources, reduced cost and accord with the requirement for sustainable development; In highway maintenance field it has wide application prospects.

2014 ◽  
Vol 1052 ◽  
pp. 392-395 ◽  
Author(s):  
Li Xia He

High Ti-bearing blast furnace (BF) slag is the smelting waste of vanadium titano-magnetite. It has great production but low utilization. The high Ti-bearing BF slag is used in building materials industry, which recycles waste material, saves resources and energy, benefiting environmental protection and achieving sustainable development of resources. Study on the recycling of high Ti-bearing BF slag will be an important subject of our researches in future.


2017 ◽  
Vol 18 (1) ◽  
pp. 203-213 ◽  
Author(s):  
Chengchao Guo ◽  
Xuanxuan Chu ◽  
Fuming Wang

Abstract Tailings reservoirs generally consist of a tailings dam, a tailings conveying system and a drainage system, which are indispensable facilities and provide security and environmental protection for storing tailings and clarifying water in some industries (e.g., metallurgy, non-ferrous building materials, nuclear and chemical industries). Consequently, consolidating seepage prevention and treatment is important. When applied to seepage prevention works for tailings reservoirs, current seepage prevention technologies can cause destruction of the dam and require further construction sites. It is therefore essential to adopt new types of advanced and practical technologies. Aimed at studying the feasibility of the application of non-water reaction polymer grouting technology in seepage prevention of tailings reservoirs and acquiring the properties for practical engineering, an analysis of the environmental impact, chemical resistance and permeability of the polymer material, and the main technical characteristics of the polymer cutoff wall was conducted. The test results showed that the polymer grouting technology applied to seepage prevention works of a tailings reservoir caused little disturbance to the dam, possessed good anti-seepage performance and perfect durability. This study may provide a reference for the seepage control of tailings reservoirs.


2019 ◽  
Vol 8 (3) ◽  
pp. 3435-3438

Billions of waste is produced in the world but the wastes are not properly recycled. Recycling of materials also different issues and it needs more energy. The waste materials are stored in a land also create more amounts of problem and it Leeds to land pollution. The utilization of waste materials in the manufacturing of building is a challenging task. But it is the good solution for disposal of waste materials in the developed building materials. We need to analyze the waste materials first then only we can utilize the materials in the perfect way. Now a day’s lot of research is going on in the waste utilization area. This literature study mentioned the various waste materials and how it is used in our real construction field. The waste utilization gave two things. First one is reduction of the pollution and the second is save the natural materials for sustainable development. This paper also shows the betterment results of the waste utilization technique.


2021 ◽  
pp. 136943322199249
Author(s):  
Xing Li ◽  
Jiwen Zhang ◽  
Jun Cheng

This paper presents fatigue behaviors and the stiffness degradation law of concrete continuous beams with external prestressed carbon fiber-reinforced polymer (CFRP) tendons. Three specimens were tested under fatigue loading, and the influence of different load levels on the stiffness degradation and fatigue life were studied, and it was found that the stiffness degradation of three test specimens exhibited a three-stage change rule, namely rapid decrease, stable degradation, and sharp decline, but there are obvious differences in the rate and amplitude of stiffness degradation. The load level has a significant influence on the fatigue life of the test specimens. An analytical model with load level considered was proposed to calculate the residual stiffness and predict the stiffness degradation, which is in good agreement with the test results. The model of stiffness degradation presents a possible solution for practical engineering applications of concrete continuous beams with externally prestressed CFRP tendons subjected to different fatigue loadings.


2012 ◽  
Vol 518-523 ◽  
pp. 5853-5858
Author(s):  
Lu Feng Duan

Ecological environment is an important external condition for subsistence and development of human being, and urbanization is an important engine to promote regional economy and social development, and whether they can become an organic combination would be crucial for the western region to ensure sustainable development in economy and society. The paper presents the corresponding solution including change of idea about ecology, improvement of environment for urban development, planning in a scientific and reasonable way, upgrading urban evolution system, carrying on industrial transformation, enhancement of the momentum for urban development, building “Two Oriented” society so as to increase urban development quality after analysis of various restrictive factors in development of urbanization in western region under the ecological environment restriction.


2010 ◽  
Vol 129-131 ◽  
pp. 42-45
Author(s):  
Li Fang Qiao ◽  
Lei Feng ◽  
Lian Fang Yao ◽  
Xin Zheng Li

The landscape industry has become one of the industries with higher resource and energy consumption, and the implementation of urban low-carbon landscape construction is of great significance to improve the ecological environment. In this study, the method of low-carbon landscape construction was studied from two aspects including the carbon source control and carbon sink, as well as both direct and indirect effect. The results showed that the low-carbon landscape construction can be controlled from five aspects including landscape planning, landscape design, low-carbon landscape technology, low-carbon landscape behavior and low-carbon policy. Through a series of low-carbon measures, carbon emissions can be controlled at a reasonable level during the urban landscape construction, which also promotes the sustainable development of urban ecological environment.


2013 ◽  
Vol 357-360 ◽  
pp. 1070-1073
Author(s):  
Bao Zhu Sheng

Building material is the base of civil engineering construction, in the history of thousands of years of development, building materials also gradually change and change, and is closely related to the progress of human civilization and the development of science and technology.Green building materials has the vital significance to the construction of a conservation-oriented society and sustainable development, in accordance with China's social development.This paper introduces the importance of the development of green building materials,analyzes some factors influencing the development of green building materials in China,and discusses the development tendency of green building materials in China.


2011 ◽  
Vol 280 ◽  
pp. 165-170
Author(s):  
Shi Jin Wang

Green building materials as an important factor plays important role in the promote sustainable development. However, at present a unified understanding on the green building materials in China have not been formed,the evaluation system of green building materials is not perfect.In this paper,the concept and features of green building materials are discussed deeply,and life cycle model is used to evaluate the green building materials.The status and future trend of green building materials are discussed too.


2021 ◽  
Vol 2021 (24) ◽  
pp. 48-59
Author(s):  
Anatolii Mudrychenko ◽  
◽  
Ivan Balashov ◽  
Sergey Illyasch ◽  
◽  
...  

ntroduction. Rehabilitation of public roads network requires a comprehensive recovery with strengthening of the bearing capacity of the pavement foundation. Rehabilitation of the foundation bearing capacity performed by arranging layers of road material made by cold recycling technology (hereinafter — CRRM) in accordance with [4] or by arranging a layer of crushed stone — sand mixture reinforced with cement or complex binder (hereinafter — CSSM 20) according to [13]. Purpose. The purpose of the work is to study the feasibility of using acrylic additives for the preparation of mixtures made by cold recycling technology and crushed stone-sand mixtures treated with cement in the layers of pavement foundation. Materials and methods. Experimental comparative tests of CRRM and CSSM 20 with different content of complex binder were performed. Results. Feasibility of acrylic additives use has been established (hereinafter — the additive) for the preparation of CRRM and CSSM 20 in the pavement foundation layers. Recommendations on technological parameters of preparation, transportation, laying and compaction of mentioned mixtures are given. Conclusions. Performed researches have shown that according to physical and mechanical indicators CRRM and CSSM20 meet the requirements of the current normative documents of Ukraine. The advantages of use are noted.


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