Influence of Acid Soil Stabilizer on the Acid-Basic Properties of Drill Cuttings

2019 ◽  
Vol 23 (10) ◽  
pp. 29-33
Author(s):  
L.V. Rudakova ◽  
E.A. Pichugin ◽  
M.V. Zilberman ◽  
E.V. Zyryanova
Keyword(s):  
Building Materials ◽  
Solid Phase ◽  
Acid Soil ◽  
Physical And Mechanical Properties ◽  
Environmental Safety ◽  
Engineering Structures ◽  
Drill Cuttings ◽  
Road Building ◽  
Physicomechanical Characteristics ◽  
Soil Stabilizer

One of the most promising areas of disposal of drill cuttings is their use as a component for the manufacture of mixtures used for the construction of engineering structures, such as road foundations. One of the limitations of the disposal of drill cuttings in this direction is the presence of alkaline components in the slimes, which worsen the physicomechanical characteristics of the mixtures obtained and create the threat of negative environmental impacts. In this article, the authors studied the dynamics of changes in the pH of the slurry sludge-water, and also conducted experiments to study the effects of additions of hydrochloric acid and acid soil stabilizer Polybond. It was established that the buffering capacity of the solid phase of drill cuttings in relation to maintaining pH at a level exceeding the value of 9 is low, and maintaining pH = 6÷8 units. is high. This fact suggests that when obtaining road-building mixtures based on drill cuttings, it is possible to do with small additions of acid soil stabilizer, at the same time the risk of obtaining products with unacceptably low pH values is negligible. The use of acid soil stabilizer in the manufacture of road-building materials based on drilling sludge helps ensure environmental safety of products, as well as improve the physical and mechanical properties of the material.

Studies of road constructions of macadam on the shear stress

10.12737/1771 ◽  
2013 ◽  
Vol 3 (3) ◽  
pp. 66-69
Author(s):  
Артемьев ◽  
Vladislav Artemev
Keyword(s):  
Shear Stress ◽  
Building Materials ◽  
Maximum Stress ◽  
Stress And Strain ◽  
Road Building ◽  
Local Road

Analysis of calculation of stress and strain of pavement with macadam by the method of ODN 218.046–01 is given. The main objective of strengthening local road-building materials is to identify areas of maximum stress, which should be stren-gthened with the use of geosynthetic or binding materials. As a result zones of maximum stress in the two-layer pavement are revealed. The dependences of the shear stress from the increase in the thickness of pavement with an increase in gravel or sand layers are defined.

scholarly journals Environmental protection when processing road-building materials

2020 ◽  
Vol 6 ◽  
pp. 19-22
Author(s):  
Gulchekhra Mirzaeva ◽  
Abdug’aniyev Nazirjon
Keyword(s):  
Environmental Protection ◽  
Building Materials ◽  
Negative Impact ◽  
Construction Waste ◽  
Road Building

This article presents the most acceptable ways of recycling waste road building materials, as well as the main measures to eliminate the negative impact on the environment of waste road building materials obtained in the process of construction, restoration and reconstruction of roads. These activities will solve a number of problems associated with the negative impact on the environment of construction waste.

scholarly journals TECHNOLOGIES OF ROAD-BUILDING MATERIALS BASED ON THERMOPLASTIC COMPOSITES: CURRENT STATE AND PROSPECTS FOR DEVELOPMENT

2021 ◽  
Vol 7 (4) ◽  
pp. 55-61
Author(s):  
D. I. BOCHKAREV ◽  
◽  
P. A. KATSUBA ◽  
E. A. SHUTOVA ◽  
V. M. SHAPOVALOV ◽  
...  
Keyword(s):  
Building Materials ◽  
Thermoplastic Composites ◽  
Road Building ◽  
Current State

Utilization of Hydrolysis Lignin in Compositions Soil-Cements

2019 ◽  
Vol 23 (11) ◽  
pp. 32-37
Author(s):  
N.A. Konovalova ◽  
O.N. Dabizha ◽  
P.P. Pankov ◽  
E.A. Rush
Keyword(s):  
Portland Cement ◽  
Model Experiment ◽  
Building Materials ◽  
Raw Materials ◽  
Hydrolysis Lignin ◽  
X Ray ◽  
Road Building ◽  
The Road ◽  
Hydrolyzed Lignin ◽  
Scanning Electron

The article investigated the compositions of road-building materials containing screenings of rock crushing, Portland cement, hydrolyzed lignin, modified by the stabilizing additive “Element”. The road-building compositions containing screenings of rock crushing, Portland cement, hydrolyzed lignin modified with the stabilizing additive "Element" were investigated. The optimal content of raw materials has been established, which allows to obtain soil-cements with a strength mark of at least M 60 - M 75. Using a model experiment, it was shown that the stabilizing additive “Element” is active and can interact with each of component of the raw materials. Using the methods of scanning electron microscopy, infrared spectroscopy, X-ray phase analysis, it has been experimentally shown that the processes of hydration, carbonization and increasing the connectivity of orthosilicate anions play a significant role in the structure formation of soil-cements.

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