Strength Prediction of Cold Asphalt Emulsion Mixtures Using the Maturity Method

Otieno, Magdalene Nafula; Kaluli, James Wambua; Kabubo, Charles

doi:10.1061/(asce)mt.1943-5533.0003166

Cited by 11 publications

(11 citation statements)

References 21 publications

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“…This may lead to a conclusion that the processes having the greatest influence on the curing process of both mixtures were similar in nature, i.e., they were not governed primarily by the formation of hydraulic bonds. Nonlinear logarithmic curves were fitted to the data and shown in Figure 14 , as these functions are often used to approximate the time evolution of mechanical properties in both cement-bound materials and cold-recycled mixtures [ 49 , 50 , 51 ]. The results shown in Figure 14 reinforce the above-mentioned observations.…”

Section: Resultsmentioning

confidence: 99%

Using Reclaimed Cement Concrete in Pavement Base Mixes with Foamed Bitumen Produced in Cold Recycling Technology

Stępień

Maciejewski

2022

Materials

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The paper presents the results of exploratory research on the use of reclaimed cement concrete in cold-recycled mixes with foamed bitumen. Because reclaimed cement concrete, unlike natural aggregates, is expected to have a residue of the non-hydrated cement covering the aggregate grains, which may result in a secondary cementation process after its application in a road base, this avenue was explored by tracking the time evolution of the compressive strength of the final material. The tests were performed using two mixtures, i.e., a reference mixture and a mixture containing 25% reclaimed cement concrete. The mixtures containing reclaimed cement concrete were characterized by increased uniaxial compressive strengths after each curing period (3, 4, 7, 14 and 28 days)—by 11.5 kPa on average and e.g., 498 kPa vs. 506 kPa after 28 days. The obtained differences between the mixtures were not found to be statistically significant. The small effects of the incorporation of reclaimed cement concrete were attributed to the time passed typically between the demolition and new pavement construction and to the presence of a second binding material—bitumen.

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Section: Resultsmentioning

confidence: 99%

Using Reclaimed Cement Concrete in Pavement Base Mixes with Foamed Bitumen Produced in Cold Recycling Technology

Stępień

Maciejewski

2022

Materials

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“…The MM model was utilized for each curing temperature to predict the moisture loss and different mechanical characteristics over curing time. Tensile properties of CBEM has been used in the majority of studies to develop maturity function [23,24,32]. Inconsistent with these literatures, in this study, ITS was used as strength parameter to develop a strengthmaturity model.…”

Section: Aim and Scopementioning

confidence: 91%

“…Nowadays it is rapidly used in the prediction of strength of cold bitumen emulsion mix [23,24,56]. In this study, the strength maturity function was developed based on Arrhenius concept by following below steps.…”

Section: Strength-maturity Modelmentioning

confidence: 99%

“…However, after a certain period, both became constant. Different mathematical models are being used to understand the curing behaviour of CBEM, i.e., Exponential [19], Mechaelis-Menten (MM) [19][20][21][22], Strength-Maturity model [23][24][25][26]. The Exponential and Mechaelismenten model demonstrates the evolution of mechanical properties of CBEM at specified curing temperature by considering curing time as a factor [19], in which MM model was found effective in characterizing the evolution of mechanical properties of cold bitumen emulsion mix [22].…”

Section: Introductionmentioning

confidence: 99%

“…The Exponential and Mechaelismenten model demonstrates the evolution of mechanical properties of CBEM at specified curing temperature by considering curing time as a factor [19], in which MM model was found effective in characterizing the evolution of mechanical properties of cold bitumen emulsion mix [22]. The Strength-Maturity model consider both the curing time and curing temperature in prediction of mechanical properties of CBEM [24]. If the ambient temperatures are known, these models can predict the in situ short-and long-term mechanical properties of CBEM.…”

Section: Introductionmentioning

confidence: 99%

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Impact of curing on the volumetric and mechanical properties of cold bitumen emulsion mix

Prasad

Suman

2023

Eng. Res. Express

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Cold bitumen emulsion mix (CBEM) is an emerging sustainable material for constructing the base or surface layer of flexible pavements, reducing energy consumption and global warming effects compared to hot mix asphalt. The main challenges associated with CBEM are low initial strength, moisture susceptibility, etc. This is primarily due to water encapsulation. The curing process allows the water to evaporate gradually over time, improving mechanical properties. This study investigates CBEM’s volumetric and mechanical properties under different curing conditions. CBEMs were prepared using low (50 blows) and high (75 blows) compaction efforts and cured at 25, 40, and 55 °C for 1 to 28 days. In volumetric characteristics, the air voids and voids in mineral aggregates decreased slightly with curing, while total binder volume decreased. Effective binder volume and voids filled with binder increased slightly, then decreased. The mechanical properties, i.e., Marshal Stability, Marshal Quotient, Indirect Tensile Strength (ITS), and Moisture Susceptibility parameters like the Indirect Tensile Strength Ratio (ITSR) and Retained Marshal Stability (RMS), were found to improve over time at each curing temperature. Using a high curing temperature further improved the mechanical characteristics of CBEM. The curing process was decelerated in case of CBEM prepared by high compactive efforts compared to CBEM prepared by low compactive efforts. The Michaelis-Menten model can be used to analyze moisture loss growth and the development of mechanical properties over time. The strength-maturity model can be developed by using ITS as strength parameters. There was a strong correlation between all mechanical characteristics and moisture loss.

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Prediction of Properties of Asphalt Emulsion Residue Using Maturity Method

Anjali

Swamy

2022

Proceedings of the Sixth International Conference of Transportation Research Group of India

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Strength Prediction of Cold Asphalt Emulsion Mixtures Using the Maturity Method

Cited by 11 publications

References 21 publications

Using Reclaimed Cement Concrete in Pavement Base Mixes with Foamed Bitumen Produced in Cold Recycling Technology

Using Reclaimed Cement Concrete in Pavement Base Mixes with Foamed Bitumen Produced in Cold Recycling Technology

Impact of curing on the volumetric and mechanical properties of cold bitumen emulsion mix

Prediction of Properties of Asphalt Emulsion Residue Using Maturity Method

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