scholarly journals Comparative evaluation of geotechnical properties of red tropical soils and anthills from parts of Edo State for road construction

2018 ◽  
Vol 21 (7) ◽  
pp. 1250
Author(s):  
O Andre-Obayanju ◽  
O.J. Imarhiagbe ◽  
T.U.S. Onyeobi
Keyword(s):  
Comparative Evaluation ◽  
Road Construction ◽  
Tropical Soils ◽  
Geotechnical Properties ◽  
Edo State

scholarly journals Comparative evaluation of dump trucks with rigid and articulated frame in conditions of road construction production

2020 ◽  
Vol 17 (4) ◽  
pp. 174-181
Author(s):  
V. N. Dobromirov ◽  
◽  
K. I. Fomin ◽  
U. N. Meike ◽  
◽  
...  
Keyword(s):  
Information Search ◽  
Comparative Evaluation ◽  
Load Capacity ◽  
Statistical Processing ◽  
Road Construction ◽  
The Body ◽  
Dump Truck ◽  
The Road ◽  
Dump Trucks ◽  
Information Materials

The article presents the analysis results of the design of dump trucks used in road construction field. The authors point out the tendency of expanding the use of dump trucks with articulated frames in the world practice. The necessity of evaluating the possibilities of domestic manufacturers to produce the machines of this type is justified. Comparative evaluation of samples was carried out by comparing generalized indicators of the vehicle quality determined by their technical level coefficients, as well as by directly comparing a number of specific indicators of their performance properties. Information search, statistical processing of information materials, expert research and mathematical modeling were used as scientific methods for obtaining the initial data for evaluation. The comparative qualimetric assessment of the operational capabilities of dump trucks of various designs gives grounds to recognize that the use of a machine with an articulated frame for direct filling of the road embankment will be preferable to machines of frame construction. This is due to the fact that the articulated dump truck has a higher cross-country ability and maneuverability, while having a certain reserve for increasing the load capacity and the similar cargo capacity of the body with the frame truck. The evaluation results confirm the feasibility of producing a domestic dump truck with an articulated frame.

scholarly journals Review of the use of nanomaterials in soils for construction of roads

Respuestas ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 213-223
Author(s):  
Jhon Fredy Rincón-Morantes ◽  
Oscar Javier Reyes-Ortiz ◽  
Juan Carlos Ruge-Cárdenas
Keyword(s):  
Water Treatment ◽  
Present Article ◽  
Road Construction ◽  
Geotechnical Properties ◽  
Nano Materials ◽  
Different Types

Nano materials are becoming more and more relevant in the construction of civil works, since they can be used as additions or additives to improve and stabilize asphalt concretes, hydraulic concretes, fine soils at the level of subgrade, sub-bases, bases and even for filters in water treatment. The present article intends to collect the different experiences in the use of nano materials, in order to stabilize or improve the mechanical and geotechnical properties of soils used in road construction, especially what has to do with the manufacture of nano fibers for use in soils; finding that its use in the field of roads is to be investigated and developed with different types of solutions, as the most studied are the carbon nano fibers

scholarly journals Geotechnical Properties of Lateritic Soil Stabilized with Ground-Nut Husk Ash

2016 ◽  
Vol 2 (11) ◽  
pp. 568-575 ◽  
Author(s):  
Emeka Segun Nnochiri ◽  
Olumide Moses Ogundipe
Keyword(s):  
Soil Sample ◽  
Unconfined Compressive Strength ◽  
Road Construction ◽  
Optimum Moisture Content ◽  
Geotechnical Properties ◽  
Lateritic Soil ◽  
Natural Soil ◽  
Dry Density ◽  
Engineering Property ◽  
Maximum Dry Density

This study assesses the geotechnical properties of lateritic soil stabilized with Ground-nut Husk Ash. Preliminary tests were carried out on the natural soil sample for identification and classification purposes, while consistency limits tests were thereafter carried out as well. Engineering property tests such as California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS) and compaction tests were performed on both the natural soil sample and the stabilized lateritic soil, which was stabilized by adding Ground-nut Husk Ash, GHA, in percentages of 2, 4, 6, 8 and 10 by weight of the soil.  The results showed that the addition of GHA enhanced the strength of the soil sample. The Maximum Dry Density (MDD) reduced from 1960 kg/m3 to 1760 kg/m3 at 10% GHA by weight of soil. The Optimum Moisture Content (OMC) increased from 12.70% to 14.95%, also at 10% GHA by weight of soil. The unsoaked CBR values increased from 24.42% to 72.88% finally, the UCS values increased from 510.25 kN/m2 to 1186.46 kN/m2, for both CBR and UCS, the values were at 10% GHA by weight of soil. It was therefore concluded that GHA performs satisfactorily as a cheap stabilizing agent for stabilizing lateritic soil especially for subgrade and sub base purposes in road construction.

scholarly journals Geotechnical properties of lateritic soil as subgrade and base material for road construction in Abeokuta, Southwest Nigeria

2018 ◽  
Vol 6 (1) ◽  
pp. 78
Author(s):  
Layade Gideon Oluyinka ◽  
Ogunkoya Charles Olubunmi
Keyword(s):  
Specific Gravity ◽  
Moisture Content ◽  
Base Material ◽  
Road Construction ◽  
Geotechnical Properties ◽  
Lateritic Soil ◽  
Size Analysis ◽  
Dry Density ◽  
Ratio Test ◽  
Regulatory Standards

Lateritic soils that overburden Mohammad Buhari Estate in Abeokuta area of Ogun State, Nigeria is in great use for road construction. However, little is known of their geotechnical properties and suitability as base, sub-based and sub-grade materials for road construction. This study is aimed at utilizing in accordance with regulatory standards of Nigeria, the geotechnical techniques to investigate the properties of this lateritic soil. The samples were collected at 0. 25m deep at different locations and were subjected to the following laboratory test; Particle size analysis, Atterberg limits test, Compaction test, Californian Bearing Ratio test, Moisture content and Specific gravity test. The result shows un-soaked CBR test from 12.52-55.84 %. The specific gravity results range from 2.57-2.89 while the optimum moisture content and maximum dry density range from 18.20-28.30% and 1.48-1.81mg/m3 respectively. The liquid limit, plastic limit and plastic index ranges from 12.0 to 40.1%, 10.0 to 22.0% and 2.8 to 20.4% respectively. This implies that lateritic soil present throughout the study area is suitable for use as sub-base and base materials since the geotechnical properties are fairly within the regulatory standards of Nigeria.

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