What is the reason for the abnormal noise when a car drives on cement roads but not on asphalt roads?
3 Answers
Car noise on cement roads but not on asphalt roads is because: cement roads are not smooth and produce sound when in contact with tires, while asphalt roads do not. Related introduction: 1. Introduction: Tires are circular elastic rubber products assembled on various vehicles or machinery for rolling on the ground. They are usually mounted on metal rims, supporting the vehicle body, cushioning external impacts, achieving contact with the road surface, and ensuring the vehicle's driving performance. 2. Expansion: Tires are often used under complex and harsh conditions. They endure various deformations, loads, forces, and high and low temperatures while driving, so they must have high load-bearing performance, traction performance, and cushioning performance. At the same time, they are also required to have high wear resistance and flex resistance, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used for tire production, indicating the significant rubber consumption capacity of tires.
I've driven for many years, and it's common to hear strange noises on concrete roads but not on asphalt roads. It's mostly due to the suspension system, such as worn-out shock absorbers or loose springs. The hard, bumpy concrete surface causes more vibration, making parts rattle and produce clunking sounds, while the softer asphalt road masks these noises. Tires could also be the issue—overinflated tires or unbalanced wheels can lead to increased friction noise when bouncing on rough concrete. Additionally, loose chassis components, like bolts, can create buzzing sounds during vibrations. I once had a similar problem and found that the rear axle bracket was rusted and loose; replacing it fixed the noise. Pay attention to these details while driving—noises on concrete roads can serve as early warnings. I recommend regularly visiting a garage to tighten bolts or replace suspension parts to avoid bigger issues. It saves money and ensures a smoother, worry-free ride.
Hey, as a car enthusiast, I've pondered this issue before. The key to why there's noise on concrete roads but not on asphalt lies in the difference in road surfaces. Concrete is harder and rougher, with higher vibration frequencies that amplify hidden issues, such as uneven tire wear or unstable tire pressure, resulting in a mix of tire noise and rattling sounds while driving, whereas smooth asphalt suppresses them. Suspension components are also common culprits - leaking shock absorbers or aged rubber bushings can creak under bumps. When I checked my own car, I found the front ball joint was loose, and simply tightening it solved the problem. I recommend first visually inspecting tire wear balance, tapping the chassis to listen for loose points, and remembering to check tire pressure and chassis screws monthly during routine maintenance. Noise isn't necessarily a big deal, but treating concrete roads as a testing ground to address minor issues early leads to smoother driving and better fuel efficiency.
