Enhancement of road pavement material using conventional and nano-crude oil fly ash

2021 ◽  
Author(s):  
Mohammed Dahim ◽  
Musab Abuaddous ◽  
Hashem Al-Mattarneh ◽  
Andan Rawashdeh ◽  
Rabah Ismail
Keyword(s):  
Fly Ash ◽  
Crude Oil ◽  
Road Pavement ◽  
Oil Fly Ash ◽  
Pavement Material

Design and Construction of Fly Ash Silo with Inverted Cone

2012 ◽  
Vol 22 (3) ◽  
pp. 391-394 ◽  
Author(s):  
Paul Teeuwen ◽  
Wouter Claassen ◽  
Maarten Baan
Keyword(s):  
Fly Ash ◽  
Inverted Cone ◽  
Design And Construction

scholarly journals Tension and Compression Behaviour of Fly Ash-Lime-Gypsum Composite Mixed with Treated Tyre Chips

2011 ◽  
Vol 2011 ◽  
pp. 1-15 ◽  
Author(s):  
S. P. Guleria ◽  
R. K. Dutta
Keyword(s):  
Fly Ash ◽  
Axial Strain ◽  
Compressive Load ◽  
Tensile Load ◽  
Constructional Material ◽  
Toughness Index ◽  
Road Pavement ◽  
Curing Period ◽  
Axial Tensile ◽  
Tension And Compression

This paper presents the results of effect of inclusion of water, sodium hydroxide and carbon tetrachloride treated tire chips on Compressive load, tensile load, axial strain, diametral strain, toughness index and post peak behaviour of the reference mix containing fly ash + 8% lime + 0.9% gypsum for a curing period varying from 7 to 180 days using three different curing methods. The results of this study revealed that the axial/diametral strain, axial/tensile load of reference mix mixed with dry tyre chip can be increased with the treatment provided on dry tyre chips. The axial/diametral strain, axial/tensile load, toughness index improves with the change in curing method and curing period. Potential use of this relatively new constructional material can be road pavement having light traffic.

Mechanics Analysis of the Structure of Fly-Ash-Flushed-by-Seawater Base Asphalt Pavement under Heavy Load

2012 ◽  
Vol 256-259 ◽  
pp. 1866-1870
Author(s):  
Ling Yu ◽  
Jing Yang ◽  
Long Sheng Bao ◽  
Guang Shan Zhu
Keyword(s):  
Fly Ash ◽  
Tensile Stress ◽  
Asphalt Pavement ◽  
Structural Parameters ◽  
Structural Parameter ◽  
Structural Stress ◽  
Road Asphalt ◽  
Heavy Load ◽  
The Road ◽  
Road Pavement

In order to find out the loading mechanism of Fly-Ash-Flushed-by-Seawater base asphalt pavement under heavy load and verify reasonable road pavement structure, this paper analysed the road model under different axel load with ABAQUS. The influence of structural stress and the road asphalt pavement deflection in different road structural parameters were shown in the paper. The result indicates that the structural stress and the deflection under heavy load are greater than they are under the standard load. When the vehicle is over load by 100％, the tensile stress of subbase is close to the allowable tensile stress. The structure of Fly-Ash-Flushed-by-Seawater base asphalt pavement can be designed to adapt to the over load traffic of Yingkou by adjusted the structural parameter in a certain range.

scholarly journals Evaluation on the Mechanical Properties of Ground Granulated Blast Slag (GGBS) and Fly Ash Stabilized Soil via Geopolymer Process

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2833
Author(s):  
Syafiadi Rizki Abdila ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Romisuhani Ahmad ◽  
Shayfull Zamree Abd Rahim ◽  
Małgorzata Rychta ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Sodium Hydroxide ◽  
Soil Stabilization ◽  
Clay Soil ◽  
Soil Strength ◽  
Road Pavement ◽  
Limit Test ◽  
Alkaline Activator ◽  
Pavement Construction

This study intended to address the problem of damaged (collapsed, cracked and decreased soil strength) road pavement structure built on clay soil due to clay soil properties such as low shear strength, high soil compressibility, low soil permeability, low soil strength, and high soil plasticity. Previous research reported that ground granulated blast slag (GGBS) and fly ash can be used for clay soil stabilizations, but the results of past research indicate that the road pavement construction standards remained unfulfilled, especially in terms of clay’s subgrade soil. Due to this reason, this study is carried out to further investigate soil stabilization using GGBS and fly ash-based geopolymer processes. This study investigates the effects of GGBS and ratios of fly ash (solid) to alkaline activator (liquid) of 1:1, 1.5:1, 2:1, 2.5:1, and 3:1, cured for 1 and 7 days. The molarity of sodium hydroxide (NaOH) and the ratio of sodium silicate (Na2SiO3) to sodium hydroxide (NaOH) was fixed at 10 molar and 2.0 weight ratio. The mechanical properties of the soil stabilization based geopolymer process were tested using an unconfined compression test, while the characterization of soil stabilization was investigated using the plastic limit test, liquid limit test, scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The results showed that the highest strength obtained was 3.15 MPA with a GGBS to alkaline activator ratio of 1.5 and Na2SiO3 to NaOH ratio of 2.0 at 7 days curing time. These findings are useful in enhancing knowledge in the field of soil stabilization-based geopolymer, especially for applications in pavement construction. In addition, it can be used as a reference for academicians, civil engineers, and geotechnical engineers.

scholarly journals Fly Ash Utilization Analysis as A Substitute of Cement in Cement Treated Base (CTB)

2021 ◽  
Vol 06 (09) ◽  
Author(s):  
Utami Sylvia Lestari ◽  
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Test Object ◽  
Strength Test ◽  
Fine Aggregate ◽  
Test Results ◽  
Surface Layers ◽  
Road Pavement ◽  
Compressive Strength Test ◽  
Fly Ash Utilization

Cement Treated Base (CTB) is a pavement layer located between the sub-base and surface layers. This pavement layer uses fine aggregate (sand) and cement as a binder. Fly ash is coal burning waste that can be used as an added material for road pavement. This study aimed to analyze the use of fly ash in the cement treated base pavement mixture. Fly ash was used as a substitute of cement. The composition used consists of fine aggregate (sand), cement, fly ash and water. The compressive strength test was carried out on variations in the composition of the test object. The requirements for CTB specifications were to have compressive strength test results ranging between 45 kg/cm2 – 55 kg/cm2 at the age of the test object for 7 days. After being tested, it was found that the composition of 70% fine aggregate (sand), 5% Portland cement, and 25% fly ash had an average compressive strength of 49.823 kg/cm2.

scholarly journals Alternatif Campuran Beberapa Bahan Jenis Filler Dengan Aspal Panas (Hot Rolled Sheet)

2018 ◽  
Vol 26 (1) ◽  
Author(s):  
Nasir Djalili
Keyword(s):  
Fly Ash ◽  
Rolled Sheet ◽  
Marshall Test ◽  
Hot Rolled

Abstrak---Campuran Hot Rolled Sheet merupakan salah satu campuran aspal panas yang mempunyai gradasi timpang. Stabilitasnya sangat bergantung dari sifat kekakuan mortalnya. Hot Rolled Sheet sebagai lapisan tipis permukaan jalan yang mempunyai tekstur cukup padat, rapat dan halus. Bahan filler yang dipakai terdiri dari kapur, semen dan fly ash. Aspal diambil dari produksi pertamina dengan penetrasi 80/100. Kadar aspal digunakan bervariasi dari 6% s/d 10%. Pengujian dilakukan terhadap agregat, aspal dan campuran.Untuk pengujian campuran dipakai Marshall Test. Hasil yang diperoleh menunjukan bahwa filler fly ash mempunyai nilai stabilitas yang tertinggi yaitu 855 kg dengan kadar aspal 7%. Kadar aspal 10% pada kapur memberikan nilai stabilitas 843 kg dan semen menghasilkan stabilitas yang cukup baik.

EXPERIENCE ON DESIGN AND CONSTRUCTION OF ROAD PAVEMENTS USING THE CLAUSES OF EUROPEAN STANDARDS ON HYDRAULICALLY BOUND MATERIALS

2019 ◽  
pp. 42-50
Author(s):  
Tatiana Tereshchenko ◽  
Serhii Illiash
Keyword(s):  
Compressive Strength ◽  
Strength Properties ◽  
Road Pavement ◽  
Rigid Pavements ◽  
State Classification ◽  
Hydraulic Binder ◽  
European Standards ◽  
Pavement Construction ◽  
Design And Construction

Hydraulically bound mixtures (HBM) are most effectively applied in the base layers of flexible road pavements to enhance their load bearing capacity and also in the base layers of rigid road pavements in the case of weak soils of the sub-grade. The evaluation of Ukrainian standards which are identical to European standards relating HBM leads to the point of subsequent implementation of new requirements trough design and construction of motor roads in Ukraine. The by European standards stated requirements and classification of HBM provide a modelling regime closer to the performance of bound pavement layer and give the wider range of HBM designations with different strength properties. Thus, this article reviews such aspects of design and construction of road pavements with HBM layers which are distinguished from the conception approved now in Ukraine. The reviewed clauses on design and construction concern road pavements which, in accordance with the European practice, are classified as flexible pavements or semi-rigid pavements and are comprised of flexible (bitumen-bound) upper layers laid on a HBM base. The reviewed types of road pavement constructions are most eligible to emphasize the possibilities of implementation of new standard requirements in the Ukrainian road building industry. As it was concluded, the European standards state classification of HBM by compressive strength RC and classification by tensile strength in combination with elastic modulus Rt, E. These methods of classification are equivalent with no correlation intended between them and have been successfully used during design and construction of road pavement constructions comprised of bitumen-bound layers laid on a HBM base. When designing the motor roads with the above mentioned pavement construction to be loaded with high traffic, HBM of strength classes RС from С8/10 to С9/12 shall be contributed where classes of strength are determined by the type of a hydraulic binder and can be accorded to the categories by ”Rt, E” values not less than T3 (from T3 to T5). Keywords: hydraulically bound mixtures, classification by values of mechanical properties, compressive strength, base layers from hydraulically bound mixtures.

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