Analytical and Laboratory Investigation on the Use of RAP and Waste Plastic for Conservative Planning of Road Construction Raw Materials

2021 ◽  
Vol 51 (1) ◽  
pp. 20210044
Author(s):  
Anand B. Tapase ◽  
Sabir S. Sayyed ◽  
Nagendra Patil ◽  
Digvijay Kadam ◽  
Ajay Shelar ◽  
...  
Keyword(s):  
Laboratory Investigation ◽  
Raw Materials ◽  
Road Construction ◽  
Waste Plastic

scholarly journals EFFICIENCY OF REINFORCEMENT OF TECHNOLOGICAL SOIL BY MINERAL MODIFIERS

2019 ◽  
Vol 4 (7) ◽  
pp. 14-23
Author(s):  
Т. Дмитриева ◽  
T. Dmitrieva ◽  
Н. Куцына ◽  
N. Kucyna ◽  
А. Безродных ◽  
...  
Keyword(s):  
Raw Materials ◽  
Road Construction ◽  
Soil Reinforcement ◽  
Production Costs ◽  
Concrete Mixture ◽  
The Road ◽  
Physicomechanical Characteristics ◽  
Advantages And Disadvantages ◽  
Complex Binder ◽  
Technogenic Raw Materials

The paper discusses the main aspects of soil reinforcement in road construction by adding a binder component to them. The use of this technology allows to solve the problem of high-quality raw materials shortage while improving the physicomechanical characteristics or keeping them at the same level, as well as to increase labor productivity and reduce production costs. The technogenic raw materials for the production of soil concrete were studied, the main physicomechanical characteristics and requirements that must be taken into account when selecting the composition of the soil concrete mixture were analyzed. The paper compares the physicomechanical characteristics of the road composite, reveals the advantages and disadvantages of introducing binder components of various types: cement, cement with modifier and a complex binder. It has been established that the introduction of a complex binder or cement with modifier contributes to the improvement of the physicomechanical characteristics while reducing the consumption of cement in the composition of the soil-concrete mixture compared to traditional soil-concrete with cement.

scholarly journals Investment Risk Management at Mining Enterprises

2019 ◽  
Vol 105 ◽  
pp. 01054
Author(s):  
Victoria Frolova ◽  
Olga Dolina ◽  
Tatyana Shpilkina
Keyword(s):  
Risk Management ◽  
Quantitative Methods ◽  
Raw Materials ◽  
Mining Industry ◽  
Road Construction ◽  
Simulation Method ◽  
Investment Risk ◽  
Geological Exploration ◽  
Maximum Information ◽  
Investment Projects

The development of the Russian economy requires an increase in production factors, including energy, fuel and raw materials. Sustainable functioning of mining enterprises has an impact on the development of such industries as metallurgy, engineering, road construction and predetermines the development of the country’s economy as a whole. The article substantiates the need to form an investment risk management system in the mining industry to encourage expansion of environment-saving measures funding. The stages of investment risk management are proposed and their content is disclosed. The most significant types of investment risks and uncertainties in assessing geological exploration investment projects in the mining industry are considered. The recommendations for considering the factors of uncertainty and risk when evaluating the effectiveness of environmental and geological exploration investment projects to use maximum information about the conditions for the implementation of projects. For risk assessment, various qualitative and quantitative methods have been proposed, and the advantages of the Monte-Carlo simulation method are shown.

scholarly journals Use of Plastic Aggregates in Concrete

2019 ◽  
Vol 9 (1) ◽  
pp. 4406-4412
Keyword(s):  
Mechanical Properties ◽  
Carbon Dioxide ◽  
Fly Ash ◽  
Construction Industry ◽  
Negative Impact ◽  
Raw Materials ◽  
Waste Products ◽  
Waste Plastic ◽  
Coarse Aggregates ◽  
Materials Used

There is no doubt concrete is most useful thing in construction industry but it has a negative impact also, just like a coin has two faces. Raw materials used in manufacturing of concrete affects the environment in one or the another negative way. Like manufacturing of cement produce carbon dioxide whereas the production of aggregates adds dust to the environment. Production of coarse aggregates also impact the geology of the area from they were extracted. A step taken in this direction is the use of waste products along with or in replacement of cement. Many of these materials are already in use, like silica fume, fly ash etc. In this study, plastic coarse aggregates were used in place of natural coarse aggregates. Plastic aggregates were produced by little processing of waste plastic. Plastic is the biggest threat to the environment, and it is affecting the environment rapidly. Some recent studies show that it can be used construction industry due to some of its properties like inert behavior, resistance to degradation etc. Also use of waste plastic can help in reducing plastic waste Various experiments were performed to test the mechanical properties of the concrete with plastic coarse aggregates. Concrete was prepared using plastic coarse aggregates in varying proportions of 0, 2.5, 5, 7.5 and 10%

A NEW KIND OF CEMENT AS A SOLUTION TO THE ENVIRONMENTAL CHALLENGES OF MODERNITY

2021 ◽  
Author(s):  
G Kasimova
Keyword(s):  
Fly Ash ◽  
High Strength Concrete ◽  
Fresh Concrete ◽  
Raw Materials ◽  
Road Construction ◽  
High Strength ◽  
Strength Concrete ◽  
Cement Replacement ◽  
Air Content ◽  
Concrete Mix

The article presents studies on the production of high-strength concrete for road construction for a given 28-day strength on local raw materials. As a cement-replacement additive, fly ash was used. It was found out that the fresh concrete mixture had adequate workability, the air content of the concrete mix withthe sperplastifizer, the 28-day strength of the base mixture, which corresponded to the required strength.

Conservation Planning of Road Construction Raw Materials - Satara a Case Study

2021 ◽  
pp. 1-24
Author(s):  
Anand B. Tapase ◽  
Sabir S. Sayyed ◽  
Nagendra Patil ◽  
Digvijay Kadam ◽  
Ajay Shelar ◽  
...  
Keyword(s):  
Conservation Planning ◽  
Raw Materials ◽  
Road Construction

scholarly journals Use of waste plastic materials for road construction in Ghana

2017 ◽  
Vol 6 ◽  
pp. 1-7 ◽  
Author(s):  
Johnson Kwabena Appiah ◽  
Victor Nana Berko-Boateng ◽  
Trinity Ama Tagbor
Keyword(s):  
Road Construction ◽  
Waste Plastic ◽  
Plastic Materials

An extensive laboratory investigation of the use of bio-oil modified bitumen in road construction

2016 ◽  
Vol 106 ◽  
pp. 133-139 ◽  
Author(s):  
Alvaro Guarin ◽  
Abdullah Khan ◽  
Ali Azhar Butt ◽  
Björn Birgisson ◽  
Nicole Kringos
Keyword(s):  
Laboratory Investigation ◽  
Road Construction ◽  
Modified Bitumen ◽  
Bio Oil

scholarly journals Waste plastic fiber as stabilizer in sub-base sand layer for road construction project

2019 ◽  
Vol 1349 ◽  
pp. 012121
Author(s):  
M R Abdul Majid ◽  
M I P Harahap ◽  
S H Hassan ◽  
M A Nazmi Rosli ◽  
Z Zulfairul
Keyword(s):  
Construction Project ◽  
Road Construction ◽  
Sand Layer ◽  
Waste Plastic

scholarly journals Comprehensive Analysis of Steel Slag as Aggregate for Road Construction: Experimental Testing and Environmental Impact Assessment

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3587
Author(s):  
Marina Díaz-Piloneta ◽  
Marta Terrados-Cristos ◽  
Jose Valeriano Álvarez-Cabal ◽  
Eliseo Vergara-González
Keyword(s):  
Coarse Aggregate ◽  
Raw Materials ◽  
Experimental Testing ◽  
Steel Slag ◽  
Reduction Rate ◽  
Road Construction ◽  
Comprehensive Analysis ◽  
Point Of View ◽  
Technical Performance ◽  
Bof Slag

Blast Oxygen Furnace (BOF) slag represents one of the largest waste fractions from steelmaking. Therefore, slag valorisation technologies are of high importance regarding the use of slag as a secondary resource, both in the steel sector and in other sectors, such as the construction or cement industries. The main issue regarding the use of BOF slag is its volumetric instability in the presence of water; this hampers its use in sectors and requires a stabilisation pre-treatment. These treatments are also cost-inefficient and cause other environmental issues. This paper analyses the use of untreated BOF slag from a technical and environmental point of view, suggesting it as an alternative to natural aggregates in road surface layers and asphalt pavements. A comprehensive analysis of the requirements to be met by raw materials used in asphalt mixes was performed, and a pilot test was carried out with two different mixtures: one mix with limestone as coarse aggregate and another with 15% BOF slag. Furthermore, the global warming impacts derived from each mix with different aggregates were measured by Life Cycle Analysis (LCA), and a transport sensitivity analysis was also performed. The results show how the utilization of BOF slag as coarse aggregate in road construction improves the technical performance of asphalt mixtures (Marshall Quotient 4.9 vs. 6.6). Moreover, the introduction of BOF slag into the asphalt mix as a coarse aggregate, instead of limestone, causes a carbon emissions reduction rate of more than 14%.

Sign in / Sign up

Export Citation Format

Share Document