On the prediction of unconfined compressive strength of silty soil stabilized with bottom ash, jute and steel fibers via artificial intelligence

2017 ◽  
Vol 12 (3) ◽  
pp. 441-464 ◽  
Author(s):  
Hamza Gullu ◽  
Halil ibrahim Fedakar
Keyword(s):  
Artificial Intelligence ◽  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Bottom Ash ◽  
Steel Fibers ◽  
Silty Soil

Physical properties, electrical resistivity, and strength characteristics of carbonated silty soil admixed with reactive magnesia

2015 ◽  
Vol 52 (11) ◽  
pp. 1699-1713 ◽  
Author(s):  
G.H. Cai ◽  
Y.J. Du ◽  
S.Y. Liu ◽  
D.N. Singh
Keyword(s):  
Compressive Strength ◽  
Electrical Resistivity ◽  
Water Content ◽  
Unconfined Compressive Strength ◽  
Ground Improvement ◽  
Strength Characteristics ◽  
Degree Of Saturation ◽  
Initial Water Content ◽  
Silty Soil ◽  
Reactive Magnesia

Soil electrical resistivity has been used quite extensively for assessing mechanical properties of chemically treated soils in the recent past. One of the most innovative applications of this technique could be in the field of ground improvement wherein carbonated reactive magnesia (MgO) is employed for treating soils. With this in view, a systematic study that targets the application of electrical resistivity to correlate physical and strength characteristics of the carbonated reactive MgO-admixed silty soil is initiated, and its details are presented in this manuscript. To achieve this, reactive MgO-admixed soils were carbonized by exposing them to CO2 for different durations, and subsequently their electrical resistivity and unconfined compressive strength were measured. In this context, the role of a parameter, the ratio of the initial water content of the virgin soil to reactive MgO content (designated as w0/c), has been highlighted. It has also been demonstrated that w0/c is able to correlate, uniquely and precisely, with the physicochemical parameters of the soils (viz., unit weight, water content at failure, porosity, degree of saturation, and soil pH), electrical resistivity, and unconfined compressive strength at various carbonation times. In addition, microstructural properties have been obtained from the X-ray diffraction, scanning electron microscopy, and mercury intrusion porosimetry analyses. These properties have been used to substantiate the findings related to the carbonation of the reactive MgO-admixed soils.

A new look into the prediction of static Young's modulus and unconfined compressive strength of carbonate using artificial intelligence tools

2019 ◽  
Vol 25 (4) ◽  
pp. 389-399 ◽  
Author(s):  
Zeeshan Tariq ◽  
Abdulazeez Abdulraheem ◽  
Mohamed Mahmoud ◽  
Salaheldin Elkatatny ◽  
Abdulwahab Z. Ali ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Compressive Strength ◽  
Young’S Modulus ◽  
Unconfined Compressive Strength ◽  
Young's Modulus ◽  
Static Young’S Modulus ◽  
New Look

scholarly journals The Effect of Circulating Fluidised Bed Bottom Ash Content on the Mechanical Properties and Drying Shrinkage of Cement-Stabilised Soil

Materials ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 14
Author(s):  
Yuanlong Wang ◽  
Yongqi Zhao ◽  
Yunshan Han ◽  
Min Zhou
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Bottom Ash ◽  
Drying Shrinkage ◽  
Fluidised Bed ◽  
Soil Mixing ◽  
Underlying Mechanisms ◽  
Cementing Material ◽  
Circulating Fluidised Bed

This study aimed to determine the effect of circulating fluidised bed bottom ash (CFB-BA) content on the mechanical properties and drying shrinkage of cement-stabilised soil. Experiments were performed to study the changes in unconfined compressive strength and expansibility of cement-stabilised soil with different CFB-BA contents and the underlying mechanisms based on microscopic properties. The results show that CFB-BA can effectively increase the unconfined compressive strength of the specimen and reduce the amount of cement in the soil. When the combined content of CFB-BA and cement in the soil was 30%, the unconfined compressive strength of the specimen with C/CFB = 2 after 60 days of curing was 10.138 MPa, which is 1.4 times that of the pure cement specimen. However, the CFB-BA does not significantly improve the strength of the soil and cannot be added alone as a cementing material to the soil. Additionally, swelling tests showed that the addition of CFB-BA to cement-stabilised soil can significantly reduce the drying shrinkage. This research project provides reference values for the application of CFB-BA in cement–soil mixing piles, including compressive strength and the reduction in the shrinkage deformation of specimens.

scholarly journals Mechanical Evaluation of Bottom Ash from Municipal Solid Waste Incineration Used in Roadbase

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Qiang Tang ◽  
Fan Gu ◽  
Hui Chen ◽  
Cong Lu ◽  
Yu Zhang
Keyword(s):  
Compressive Strength ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Unconfined Compressive Strength ◽  
Failure Strain ◽  
Heavy Traffic ◽  
Bottom Ash ◽  
Waste Incineration ◽  
Hydration Reaction ◽  
Curing Time

As a by-product from the incineration of municipal solid waste, bottom ash has a broad application prospect of resource utilization. In this study, bottom ash was selected as partial aggregate alternative and used as roadbase materials. The cemented aggregate containing bottom ash was evaluated through both experimental and numerical analysis. According to the results, the unconfined compressive strength of samples increases with the curing time, and the failure strain of sample decreases with the curing time. The unconfined compressive strength and failure strain of samples are influenced by the types of bottom ash. The increase of compressive strength with the curing time can be attributed to that the hydration reaction of cement will be more complete when the curing time is longer. The representative value (7 days) of unconfined compressive strength of samples meets the strength requirement (≥2.5 MPa) of the road subbase layer of heavy traffic highway in China. Subsequently, the surface settlement decreases with the increase of the modulus and thickness of roadbase and the distance from the centerline, while the settlement increases with vehicle load increasing. The modulus of the roadbase is not the main influences on the pavement settlement, under the condition that the strength of samples meets the requirements. However, increasing the thickness of roadbase can reduce the settlement at the center of the pavement effectively.

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