Enhancing Asphalt Performance and Its Long-Term Sustainability with Nano Calcium Carbonate and Nano Hydrated Lime

Enhancing Asphalt Performance and Its Long-Term Sustainability with Nano Calcium Carbonate and Nano Hydrated Lime

The performance of AC mixtures modified with Nano CaCO3 and NHL in terms of permanent deformation is illustrated in Figure 14 and Figure 15, respectively. A comparison of permanent strain against loading cycles for various nanomaterial (NM) contents shows that permanent deformation decreases with the increasing content of both Nano CaCO3 and NHL. For a clear numerical comparison, power fitting on a logarithmic scale delineates the data with straight lines characterized by an intercept (a), indicating the initial permanent strain, and a slope (b), representing the rate of strain accumulation through successive load applications. The parameters ‘a’ and ‘b’, along with the permanent strain (εp) at the 1000th load cycle, measure the mixture’s resistance to permanent deformation; lower values indicate enhanced rutting resistance. All parameters are exhibited in Table 5. The analyzed data reveal that both Nano CaCO3 and NHL contribute to a decrease in permanent deformation parameters. For Nano CaCO3, the intercept ‘a’ drops from 198 at 0% NM to 110 at 10% NM content, and the slope ‘b’ from 0.3916 to 0.331, reflecting a decrease in the strain accumulation rate. Similarly, NHL shows a reduction in intercept from 198 to 125 and in slope from 0.3622 to 0.3001 over the same NM range. At 6% NM, NHL shows an improvement rate in (εp) of 50.24%, indicating a significant increase in rutting resistance. This improvement is more pronounced at 10% NM, where NHL achieves an (εp) improvement rate of 68.64%. On the other hand, Nano CaCO3’s improvement rates are 31.8% at 6% NM and 61.8% at 10% NM. These findings highlight that the added NHL to AC mixtures not only reduces the rate of permanent deformation but also improves the mix’s overall structural stability more effectively than Nano CaCO3. The results underscore NHL’s potential as a superior modifier for enhancing the durability of pavement structures.

Disasters Expo USA, is proud to be supported by Inergency for their next upcoming edition on March 6th & 7th 2024!

The leading event mitigating the world’s most costly disasters is returning to the Miami Beach

Convention Center and we want you to join us at the industry’s central platform for emergency management professionals.
Disasters Expo USA is proud to provide a central platform for the industry to connect and
engage with the industry’s leading professionals to better prepare, protect, prevent, respond
and recover from the disasters of today.
Hosting a dedicated platform for the convergence of disaster risk reduction, the keynote line up for Disasters Expo USA 2024 will provide an insight into successful case studies and
programs to accurately prepare for disasters. Featuring sessions from the likes of The Federal Emergency Management Agency,
NASA, The National Aeronautics and Space Administration, NOAA, The National Oceanic and Atmospheric Administration, TSA and several more this event is certainly providing you with the knowledge
required to prepare, respond and recover to disasters.
With over 50 hours worth of unmissable content, exciting new features such as their Disaster
Resilience Roundtable, Emergency Response Live, an Immersive Hurricane Simulation and
much more over just two days, you are guaranteed to gain an all-encompassing insight into
the industry to tackle the challenges of disasters.
By uniting global disaster risk management experts, well experienced emergency
responders and the leading innovators from the world, the event is the hub of the solutions
that provide attendees with tools that they can use to protect the communities and mitigate
the damage from disasters.
Tickets for the event are $119, but we have been given the promo code: HUGI100 that will
enable you to attend the event for FREE!

So don’t miss out and register today: https://shorturl.at/aikrW

And in case you missed it, here is our ultimate road trip playlist is the perfect mix of podcasts, and hidden gems that will keep you energized for the entire journey


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