scholarly journals Investigating the rheological properties of asphalt binder incorporating different crumb rubber contents based on a response surface methodology

2020 ◽  
Author(s):  
Rawand M. Badri ◽  
Zainab Ahmed Al kaissi ◽  
Muslich Sutanto ◽  
Maan k Alobaidi
Keyword(s):  
Response Surface Methodology ◽  
Rheological Properties ◽  
Response Surface ◽  
Asphalt Binder ◽  
Crumb Rubber

scholarly journals Optimization the Physical Properties of Waste Denim Fiber Modified Bio-asphalt Binder Using Response Surface Methodology

2021 ◽  
Vol 1144 (1) ◽  
pp. 012075
Author(s):  
Abdulnaser Al-Sabaeei ◽  
Madzlan Napiah ◽  
Muslich Sutanto ◽  
Wesam Alaloul ◽  
Nur Izzi Md Yusoff ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Physical Properties ◽  
Response Surface ◽  
Asphalt Binder

scholarly journals Rheological properties of emulsions stabilized by green banana (Musa cavendishii) pulp fitted by power law model

2009 ◽  
Vol 52 (6) ◽  
pp. 1541-1553 ◽  
Author(s):  
Dayane Rosalyn Izidoro ◽  
Agnes de Paula Scheer ◽  
Maria-Rita Sierakowsk
Keyword(s):  
Response Surface Methodology ◽  
Rheological Properties ◽  
Response Surface ◽  
Power Law ◽  
Cone Angle ◽  
Rheological Behaviour ◽  
Quadratic Model ◽  
Soy Oil ◽  
Power Law Model ◽  
Green Banana

In this work, the rheological behaviour of emulsions (mayonnaises) stabilized by green banana pulp using the response surface methodology was studied. In addition, the emulsions stability was investigated. Five formulations were developed, according to design for constrained surfaces and mixtures, with the proportion, respectively: water/soy oil/green banana pulp: F1 (0.10/0.20/0.70), F2 (0.20/0.20/0.60), F3 (0.10/0.25/0.65), F4 (0.20/0.25/0.55) and F5 (0.15/0.225/0.625) .Emulsions rheological properties were performed with a rotational Haake Rheostress 600 rheometer and a cone and plate geometry sensor (60-mm diameter, 2º cone angle), using a gap distance of 1mm. The emulsions showed pseudoplastic behaviour and were adequately described by the Power Law model. The rheological responses were influenced by the difference in green banana pulp proportions and also by the temperatures (10 and 25ºC). The formulations with high pulp content (F1 and F3) presented higher shear stress and apparent viscosity. Response surface methodology, described by the quadratic model,showed that the consistency coefficient (K) increased with the interaction between green banana pulp and soy oil concentration and the water fraction contributed to the flow behaviour index increase for all emulsions samples. Analysis of variance showed that the second-order model had not significant lack-of-fit and a significant F-value, indicating that quadratic model fitted well into the experimental data. The emulsions that presented better stability were the formulations F4 (0.20/0.25/0.55) and F5 (0.15/0.225/0.625).

scholarly journals Preparation Parameter Analysis and Optimization of Sustainable Asphalt Binder Modified by Waste Rubber and Diatomite

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Hanbing Liu ◽  
Mengsu Zhang ◽  
Yubo Jiao ◽  
Liuxu Fu
Keyword(s):  
Response Surface ◽  
Response Surface Method ◽  
Softening Point ◽  
Elastic Recovery ◽  
Asphalt Binder ◽  
Crumb Rubber ◽  
Parameter Analysis ◽  
Penetration Index ◽  
Surface Method ◽  
Shear Speed

In this study, crumb rubber and diatomite were used to modify asphalt binder. Wet process was adopted as a preparation method, and the corresponding preparation process was determined firstly. The effects of six preparation parameters (crumb rubber concentration, diatomite concentration, shear time, shear speed, shear temperature, and storing time) on properties of modified asphalt binder (penetration at 25°C, softening point, ductility, viscosity at 135°C, elastic recovery, and penetration index) were investigated, and multiresponse optimization was conducted using the response surface method. The results revealed that softening points, viscosity, elastic recovery, and penetration index increase, while penetration and ductility decrease with the increase of crumb rubber concentration. Softening points, viscosity, and penetration index increase, while penetration and ductility decrease with the increase of diatomite concentration, which presents little influence on elastic recovery of binder. Shear temperature presented significant effects on penetration, softening point, viscosity, and ductility. Shear speed, shear time, and storing time have similar effects on binder properties because of their similar mechanism of action. Based on the model obtained from the response surface method, optimized preparation parameters corresponding to specific criteria can be determined, which possess favorable accuracy compared with experimental results.

scholarly journals Response Surface Methodology Optimization in Asphalt Mixtures: A Review

2021 ◽  
Author(s):  
Aliyu Usman ◽  
Muslich Hartadi Sutanto ◽  
Madzlan Bin Napiah ◽  
Nura Shehu Aliyu Yaro
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Mechanical Performance ◽  
Asphalt Binder ◽  
Modeling And Optimization ◽  
Concrete Mixtures ◽  
Depth Analysis ◽  
Alternative Materials ◽  
Pavement Service Life ◽  
Independent Parameters

The application of statistical modeling and optimization approaches such as response surface methodology (RSM) is important for the excellent potential to tackle different constraints and goals and the analysis of the relationships between independent factors influencing a particular response. This chapter provides a simple yet detailed literature review on the utilization of RSM for the design of experiments, modeling, and optimization of virgin and alternative materials into asphalt binder and mixtures for sustainability. Meanwhile, an in-depth analysis based on the literature reviewed in terms of asphalt binder modification employing RSM with various independent parameters were summarized. Also, a critical review of the application of RSM to optimize the engineering and mechanical performance characteristics of asphalt concrete mixtures is presented in this chapter. The current chapter concluded that the use of RSM statistical analysis in a highway materials perspective provides a broader understanding of the factors that control pavement performance throughout the pavement service life.

scholarly journals Acid and Sulphate Attacks on a Rubberized Engineered Cementitious Composite Containing Graphene Oxide

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3125
Author(s):  
Lavaniyah Sabapathy ◽  
Bashar S. Mohammed ◽  
Amin Al-Fakih ◽  
Mubarak Mohammed A Wahab ◽  
M. S. Liew ◽  
...  
Keyword(s):  
Weight Loss ◽  
Response Surface Methodology ◽  
Graphene Oxide ◽  
Response Surface ◽  
Length Change ◽  
Crumb Rubber ◽  
Cementitious Composite ◽  
Acid Attack ◽  
Engineered Cementitious Composite ◽  
Chemical Attack

The objective of this research was to determine the durability of an engineered cementitious composite (ECC) incorporating crumb rubber (CR) and graphene oxide (GO) with respect to resistance to acid and sulphate attacks. To obtain the mix designs used for this study, response surface methodology (RSM) was utilized, which yielded the composition of 13 mixes containing two variables (crumb rubber and graphene oxide). The crumb rubber had a percentage range of 0–10%, whereas the graphene oxide was tested in the range of 0.01–0.05% by volume. Three types of laboratory tests were used in this study, namely a compressive test, an acid attack test to study its durability against an acidic environment, and a sulphate attack test to examine the length change while exposed to a sulphate solution. Response surface methodology helped develop predictive responsive models and multiple objectives that aided in the optimization of results obtained from the experiments. Furthermore, a rubberized engineered cementitious composite incorporating graphene oxide yielded better chemical attack results compared to those of a normal rubberized engineered cementitious composite. In conclusion, nano-graphene in the form of graphene oxide has the ability to enhance the properties and overcome the limitations of crumb rubber incorporated into an engineered cementitious composite. The optimal mix was attained with 10% crumb rubber and 0.01 graphene oxide that achieved 43.6 MPa compressive strength, 29.4% weight loss, and 2.19% expansion. The addition of GO enhances the performance of rubberized ECC, contributing to less weight loss due to the deterioration of acidic media on the ECC. It also contributes to better resistance to changes in the length of the rubberized ECC samples.

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