When a working area such as a residential neighbourhood is sensitive to noise, it can be difficult to limit the disruption caused by construction equipment. The development of silent blades is a significant factor in reducing such noise pollution.
One of the most common tools used on a construction site is a power cutter, which grinds and cuts concrete and asphalt. The impact of the steel blade on another hard material naturally makes a harsh friction noise. Building blocks and concrete cannot sacrifice their strength and hardness, therefore the cutting has to be done using diamond-embedded steel. Innovations must then be made as to the direction the noise takes when the blade is in use.
Nowadays, power cutters and disc cutters can use silent blades, which are specially crafted to absorb and reduce the majority of the abrasive sounds. The Silencio blade from Norton Clipper is made using two layers of steel which form a sandwich effect around a dampening layer which absorbs vibrations. Blades have incorporated cut out segments for a long time, but a silent blade can feature an additional offset cavity called a gullet, which reduces the high-pitched whistling that comes from standard diamond blades.
Silencio blades can offer a noise reduction of up to 15db compared to standard blades, which can mean up to 30 times quieter. These silent blades are still embedded with diamonds in order to increase strength upon impact, but it means that a project can be carried out without so much concern about the disturbance to the environment from noise.
Silent Blades Combat Noise Pollution
Noise pollution has been found to increase the chances of a number of physical and neurological conditions such as high blood pressure and even strokes. High levels of environmental noise are more readily associated with emotional factors such as annoyance from the noise disrupting an otherwise peaceful scene. Areas such as schools and hospitals rely on levels of environmental serenity in order to facilitate communication and rest. However, the need to develop those buildings is inevitable if such facilities are to be kept to modern architectural standards.
Not only is the welfare of the local community under consideration with noise-reduced blades, it is the levels of noise endured by construction workers themselves that is affected.