scholarly journals Effects of Microwave Heating and Long-Term Aging on the Rheological and Chemical Properties of Recovered Bitumen

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7787
Author(s):  
Matías Fernández ◽  
Gustavo Canon ◽  
Sabine Leischner ◽  
Mrinali Rochlani ◽  
José Norambuena-Contreras ◽  
...  
Keyword(s):  
Microwave Heating ◽  
Asphalt Mixture ◽  
Chemical Properties ◽  
Asphalt Pavements ◽  
Infrared Spectrometry ◽  
Self Healing ◽  
Spectrometry Analysis ◽  
Potential Alternative ◽  
And Chemical Properties

Microwave heating of asphalt pavement is a promising technique to reduce the maintenance and increase the service life of materials through self-healing of cracks. Previous studies have shown that microwave heating technology at high temperatures could damage the bitumen of asphalt mixture, which is an unwanted effect of the crack-healing technique. In this study, the effects of microwave heating and long-term aging on the rheological and chemical properties of recovered bitumen were quantified using a frequency sweep test and Fourier Transform Infrared Spectrometry analysis, respectively. The main results indicate that microwave heating has no significant effect on the aging performance of G* and δ for aged asphalt mixtures. However, for newer bitumens, the rheological properties G* and δ show minor changes after microwave heating was applied. Overall, this study confirms that microwave heating is a potential alternative for maintenance of asphalt pavements, without severely affecting the rheological and chemical properties of bitumen.

Rheological and Chemical Properties of Hydrated Lime and Polyphosphoric Acid–Modified Asphalts with Long-Term Aging

2011 ◽  
Vol 23 (5) ◽  
pp. 628-637 ◽  
Author(s):  
Shin-Che Huang ◽  
Francis P. Miknis ◽  
William Schuster ◽  
Stephen Salmans ◽  
Michael Farrar ◽  
...  
Keyword(s):  
Polyphosphoric Acid ◽  
Chemical Properties ◽  
Hydrated Lime ◽  
And Chemical Properties

Connections between the Rheological and Chemical Properties of Long-Term Aged Asphalt Binders

2015 ◽  
Vol 27 (9) ◽  
pp. 04014248 ◽  
Author(s):  
Yuhong Wang ◽  
Yong Wen ◽  
Kecheng Zhao ◽  
Dan Chong ◽  
Jianming Wei
Keyword(s):  
Chemical Properties ◽  
Asphalt Binders ◽  
Aged Asphalt ◽  
And Chemical Properties

Long-term soil biological fertility, volatile organic compounds and chemical properties in a vineyard soil after biochar amendment

Geoderma ◽  
2019 ◽  
Vol 344 ◽  
pp. 127-136 ◽  
Author(s):  
Laura Giagnoni ◽  
Anita Maienza ◽  
Silvia Baronti ◽  
Francesco Primo Vaccari ◽  
Lorenzo Genesio ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chemical Properties ◽  
Volatile Organic ◽  
Vineyard Soil ◽  
Biochar Amendment ◽  
And Chemical Properties

scholarly journals Tillage and no-tillage effects on physical and chemical properties of an Argiaquoll soil under long-term crop rotation in Buenos Aires, Argentina

2020 ◽  
Vol 8 (2) ◽  
pp. 185-194 ◽  
Author(s):  
Ana Clara Sokolowski ◽  
Barbara Prack McCormick ◽  
Javier De Grazia ◽  
José E. Wolski ◽  
Hernán A. Rodríguez ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Buenos Aires ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
No Tillage ◽  
Physical And Chemical ◽  
And Chemical Properties

Sugarcane Biochar for Agricultural Use Produced in Different Conditions of Pyrolysis

2019 ◽  
pp. 1-8
Author(s):  
Juliany Barbosa de Pinho ◽  
Aloisio Bianchini ◽  
Pedro Silvério Xavier Pereira ◽  
Letycia Cunha Nunes ◽  
Rodrigo Fernandes Daros ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Exchange Capacity ◽  
Raw Material ◽  
Physical And Chemical Properties ◽  
Oxidizing Atmosphere ◽  
Different Temperatures ◽  
Agricultural Use ◽  
Physical And Chemical ◽  
And Chemical Properties

From the pyrolysis process, biochar is a carbon rich and recalcitrant organic material with potential for long term carbon sequestration because of its aromatic structure. However, the physical and chemical properties of the biochar vary due to the diversity of raw material and the conditions of production. The present study aimed to evaluate the biochar from the sugarcane bagasse at different temperatures and under two conditions of pyrolysis. The biochar was produced at two final temperatures 200°C (1 hour); 250°C (1h) and 250°C (2h), with pyrolysis of an oxidizing and non-oxidizing atmosphere for both. PH, cation exchange capacity (CTC), carbon content (C), Nitrogen (N), hydrogen (H), H:C, C:N and ash ratios were evaluated. The contents of C, H, N and the atomic ratios H:C and C:N were higher in Biochar produced in a non-oxidizing atmosphere (BNO). However, the content of ash, pH and CTC were higher in Biochar produced in oxidizing atmospheres (BO). One can conclude the direct influence of the pyrolysis condition.

Biological and chemical properties of arable soils affected by long-term organic and inorganic fertilizer applications

1999 ◽  
Vol 29 (3) ◽  
pp. 300-308 ◽  
Author(s):  
M. Šimek ◽  
D. W. Hopkins ◽  
J. Kalčík ◽  
T. Picek ◽  
H. Šantrůčkov& ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Inorganic Fertilizer ◽  
Arable Soils ◽  
And Chemical Properties

scholarly journals Adapting date palm offshoots to long-term irrigation using groundwater in sandy soil

2021 ◽  
Vol 48 (1) ◽  
pp. 55-62
Author(s):  
Hussein J. Shareef ◽  
Abdulrahman S. Alhamd ◽  
Summar A. Naqvi ◽  
Mamdouh A. Eissa
Keyword(s):  
Date Palm ◽  
Water System ◽  
Chemical Properties ◽  
Saline Groundwater ◽  
Growing Seasons ◽  
Distinct Cluster ◽  
Relative Water ◽  
Desert Areas ◽  
And Chemical Properties

Abstract The date palm can grow in desert areas using high salinity groundwater by increasing the number of irrigation cycles. A field experiment was carried out on date palm cv. Sayer offshoots grown in sandy saline soil during the 2017 and 2018 growing seasons. The outcomes demonstrated that the application of saline (10 dS m–1) groundwater every four days increased plant height, number of new leaves, total chlorophyll, and relative water content. In turn, the hydrogen peroxide, malondialdehyde, and electrolyte leakage were reduced. Also, the effect of this treatment improved the growth of the plants, thus reduced the absorption of sodium, chloride, and increased potassium, then decreased the Na/K ratio. Cluster analysis showed two distinct cluster groups. In the first group, the dissimilarity between the treatments is illustrated by the influence of freshwater. While the second group showed the similarity between the treatments of four days and every week in the subgroup. Whereas treatment of two weeks duration shows the most detrimental effect on growth indices and chemical properties of offshoots. The utilization of saline groundwater in the water system of the date palm is the best option among the solutions possible in the current conditions of drought and thermal retention.

Sign in / Sign up

Export Citation Format

Share Document