Effect of cement kiln dust on the low-temperature durability and fatigue life of hot mix asphalt

Modarres, Amir; Ramyar, Hossein; Ayar, Pooyan

doi:10.1016/j.coldregions.2014.11.010

Cited by 31 publications

(7 citation statements)

References 22 publications

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“…Among modern engineering applications of BPD, its significant application potential and widespread utilization is in the construction sector. Mostly, BPD is applied as a partial replacement of cement in the production of mortar/concrete [ 10 , 19 , 20 , 21 , 22 ], cement bricks [ 23 ], concrete paving blocks [ 24 , 25 ], asphalt pavement/concrete [ 26 ], and sand sidewalks [ 9 ]. The presence of clinker phases and free lime in BPD may be responsible for its binding properties.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Cement Bypass Dust in Hydraulic Road Binder

Števulová

Strigac²,

Junak

et al. 2020

Materials

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This article describes utilization of a cement kiln bypass dust utilization as an added component in a hydraulic road binder. Three experimental binder mixes (BM1–BM3) with variation in the composition of the main constituents (cement clinker, ground limestone and ground granulated blast furnace slag) and constant content of bypass dust (10%) were prepared under laboratory conditions. The properties of binder constituents, fresh experimental binder mixes and hardened specimens were tested according to STN EN 13282-2 for a normal hardening hydraulic road binder. The physical and chemical properties of all binder mixes (fineness: +90 µm ≤ 15 wt.%; SO3 content: <4 wt.%) met the standard requirements. The bypass dust addition led to an increase in the water content for standard consistency of cement mixes (w/c = 0.23) and to a shortening of the initial setting time for two experimental blended cement pastes (BM1 and BM3) compared with the value required by the standard. Only BM2 with the lowest SO3 content (0.363 wt.%) and the highest percentage of granulated blast furnace slag (9.5 wt.%) and alkalis (Na2O and K2O content of 5.9 wt.%) in the binder mix met the standard value for the initial setting time (≥150 min). The results of compressive strength testing of experimental specimens after 56 days of hardening (59.2–63.9 MPa) indicate higher values than the upper limit of the standard requirement for the N4 class (≥32.5; ≤52.5 MPa).

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Section: Introductionmentioning

confidence: 99%

Incorporation of Cement Bypass Dust in Hydraulic Road Binder

Števulová

Strigac²,

Junak

et al. 2020

Materials

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“…In recent years, it has become common practice to use cement instead of ore as a filler in asphalt pavements in hot and humid areas. It is also common worldwide to mix various filler materials for replacing mineral powder to improve the performance of asphalt mixtures [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effects of Cement–Mineral Filler on Asphalt Mixture Performance under Different Aging Procedures

et al. 2019

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Cement-containing mineral powder can effectively improve the moisture stability of an asphalt mixture; therefore, this study systematically summarizes the research status of cement–mineral fillers on the performance of an asphalt mixture and determines the limitations of related studies. In this study, long-term performance tests of styrene-butadiene-styrene- (SBS)-modified asphalt mixtures are designed and evaluated with different blending ratios of the cement–mineral powder under three aging conditions. Moreover, the effect of the cement–mineral composite filler on long-term performance of the asphalt mixture using different blending ratios is determined. Cement improves the high-temperature performance and water stability of asphalt mixtures, but only for certain aging conditions. Considering the regulations for the road performance of asphalt mixtures for three aging conditions, as well as long-term performance considerations, the results indicated that the mass ratio of Portland cement to mineral powder must not exceed 2:2. Low-temperature bending and splitting tensile tests confirmed that an excessive amount of cement filler will embrittle the modified asphalt mixture during long-term aging, thereby deteriorating the tensile properties. The mechanism by which the filler influences the performance of the asphalt mixture should be further studied from the perspective of microscopic and molecular dynamics.

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“…The cement industry is one of the biggest waste producer industries in the world (Modarres, Ramyar and Ayar 2015). Approximately, 7% of the global carbon dioxide emissions come from the manufacture of cement (Siddique and Rajor 2012, Li et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Optimisation of secondary waste gypsum for mechanical stability in road (base) and foundation

Kamara¹,

Ganjian²,

Khorami³

2019

Sustainable Construction Materials and Technologies (SCMT)

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This research was undertaken to close the knowledge gap in factory gypsum wastes. Tests were prepared on industrial by-products to determine suitability. Phase one tests revealed binary and ternary mixtures of gypsum wastes greater than 40% showed reduced strength at 7, 28 and 90 days. Mixture with the proportions of 15%V-B5G (Vitamin B5 Gypsum), 37.5%RAF (Reclaimed Asphalt Filler) and 47.5%GGBS attained the highest compressive strength of approximately 30MPa at 28 days. One of the dominant factors that influenced the strength of SYSTEM 2 and 2A was the presence of calcium sulphate-CaSO4 (CaO + SO3) in the PG / V-B5G materials, calcium silicate-CaSiO3 (CaO + SiO2) in the GGBS and the pozzolanic activity (SiO2 + Fe2O3 + Al2O3) in the RAF. The results suggest there are mixtures in all the SYSTEMS that are suitable for use as road (base) and foundation materials.

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Effect of cement kiln dust on the low-temperature durability and fatigue life of hot mix asphalt

Cited by 31 publications

References 22 publications

Incorporation of Cement Bypass Dust in Hydraulic Road Binder

Incorporation of Cement Bypass Dust in Hydraulic Road Binder

Effects of Cement–Mineral Filler on Asphalt Mixture Performance under Different Aging Procedures

Optimisation of secondary waste gypsum for mechanical stability in road (base) and foundation

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