Fresh and mechanical properties of roller compacted concrete containing Cationic Asphalt Emulsion admixture

Dareyni, Mohammad; Moghaddam, Abolfazl Mohammadzadeh

doi:10.1016/j.conbuildmat.2018.11.186

Cited by 15 publications

(2 citation statements)

References 20 publications

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“…Previous research indicates that the interaction mechanism between cement and AE does not result in the formation of new crystalline substances but induces minor alterations in certain structural formations of cement-based materials and hybrid cement [14,15]. In road-based applications, cement AE materials can treat soils and natural aggregates, enhancing moisture resistance and compressive strain when integrated with reclaimed pavements.…”

Section: Introductionmentioning

confidence: 99%

Sustainable development of pavement base stabilization using future road base material (FROBM)

Bualuang,

Jitsangiam,

Chusai

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Sustainable road construction has emerged as a critical issue in assessing natural resources and urban development. With the rapid expansion of pavement networks to meet growing traffic demands, road base construction relies heavily on the consumption of natural aggregates and Ordinary Portland Cement (OPC) through the cement-treated base (CTB) technique. This practice contributes to the global warming and greenhouse gas (GHG) emissions associated with road construction. This study investigated a novel road base material, Future Road Base Material (FROBM), which emphasizes both eco-friendliness and economic advantages. Fine crushed rock (FCR) served as the parent aggregate and was modified with a chemical binder comprising 4% of the FCR weight. The proposed sustainable cementitious material, functioning as a non-OPC binder, incorporated fly ash and hydrated limestone as pozzolanic materials, along with sodium hydroxide (NaOH) as an alkali additive. An asphalt emulsion (AE) was employed as a special additive to enhance crucial pavement engineering properties. Through life cycle analysis (LCA), the construction activities and material acquisition of each stabilized base technique were evaluated in terms of project costs and carbon footprints. The non-OPC binder offered sufficient compressive strength for a stabilized base course. Furthermore, the addition of AE improved the elastic modulus and modulus of rupture of the non-OPC binder-stabilized mixture. Utilizing a non-OPC binder and AE in the base layer provides advantages in terms of construction cost and environmental impact. Although the costs increased slightly, the GHG emissions were reduced by approximately 30% compared to conventional base materials, with equivalent functionality and service life for road construction. The proposed stabilizing agent reduced the operational processes and demand for natural aggregates compared with the unbound FCR base course. Road-base stabilization using a non-OPC binder and AE represents an innovative approach to mitigate waste in coal mining and power plant industries by transitioning to a cleaner product. The concept of the FROBM serves as a valuable guideline for the development of future sustainable pavement materials.

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Section: Introductionmentioning

confidence: 99%

Sustainable development of pavement base stabilization using future road base material (FROBM)

Bualuang,

Jitsangiam,

Chusai

2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…They provide adhesion of pavement layers, used in surface treatment and for soil reinforcement and stabilization [7]. They are cation-active [8][9][10][11]. As for road emulsions, adhesion to a mineral aggregate with an acidic surface is important [12].…”

Section: Introductionmentioning

confidence: 99%

Anionic Bitumen Emulsions for Waterproofing

Antonova

Ayupov

2021

E3S Web Conf.

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Bitumen emulsions (BE) are widely used in road construction, for building and structure waterproofing. Storage stability is one of the main BE requirements. They should only break on contact with the surface. The sodium oleate effect as a surfactant on the stability of anionic bitumen emulsions for waterproofing purposes has been studied. Bitumen emulsions with increased storage stability have been developed. The optimal content of sodium oleate, providing a high complex of emulsion and resulting binder properties has been determined.

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