What Are The Benefits of KERB Stone?

2023-12-29

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While often overlooked, kerb stones are indispensable in urban planning. Strategically chosen kerb stones can significantly impact the visual and functional aspects of landscaping or construction projects. Serving a variety of purposes from delineating pathways and pavements to segregating different surfaces and providing navigational cues, kerb stones are designed to endure adverse conditions while maintaining aesthetic appeal.

Introduction of Kerb Stones

Granite kerbstone is a horizontal block usually made of concrete or stone, placed to define and separate sidewalks, driveways, and roads from nearby landscaped or grassy zones. Its primary role is to act as a protective barrier, ensuring pedestrians and vehicles stick to their designated areas while enhancing the surrounding visual appeal. Available in various shapes, sizes, and materials like concrete, natural stone, and granite, kerb stones can be customized to suit specific architectural styles or environments, often used in urban planning, commercial, and residential landscaping projects.

Types of Kerb Stones

Low or Mountable Kerbs

Class I kerbs, also known as low or mountable kerbs, mainly serve to guide traffic within designated lanes. Their minimal height, usually ranging from 70 to 80 mm, makes them ideal for motorist movement along the shoulders, especially for longitudinal drainage setups.

Low Speed Barrier or Urban Parking Kerbs

Class II kerbs, often referred to as low speed barriers or urban parking kerbs, are installed to deter parked or slow-moving vehicles on sidewalks. They also provide the capability to elevate larger emergency vehicles when necessary. These kerbs, typically 150 to 200 mm in height, are designed to minimize tyre abrasion.

High Speed Barrier Kerbs

Class III kerbs, also called high speed barrier kerbs, are crucial in high-risk areas like bridges or mountainous terrains, with heights not exceeding 450 mm for effective safety management.

Submerged Kerbs

Class IV kerbs, known as submerged kerbs, are mainly found on rural roads, providing lateral support to granular bases and flexible pavements. These are usually made from standing bricks or concrete blocks.

Application of Kerb Stones

Stone kerbs can be crafted from various natural stones, each with distinct physical characteristics. Choosing durable kerb stones matching the application environment is essential.

Grey granite kerbstone stands out as a durable choice for outdoor settings, effective for defining driveways and safeguarding both vegetation and solid structures. These stones are often used for walkways and paving edges, and can even be installed vertically to create strong retaining walls for gardens.

Boundary Definition

Kerb stones delineate the edges of pavements or roads, setting them apart from sidewalks, green spaces, or drainage elements.

Preservation and Shielding

Kerb stones prevent potential damages like cracks or erosion by acting as a protective barrier, shielding pavements from moisture and other harmful factors.

Water Management

Kerb stones ensure effective water drainage, directing water away from pavements to avoid flooding.

Enhancing Appearance

Kerb stones, available in various designs and materials, can be tailored to complement the aesthetic appeal of different properties or areas.

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Security

As a physical barrier between roadways and pedestrian paths, kerb stones help prevent accidents and enhance safety for both pedestrians and motorists.

Urban Infrastructure

Kerb stones are integral to modern urban planning, contributing to the resilience, safety, and visual appeal of roads and walkways.

Landscape Design

Beyond their functional roles, kerb stones enhance landscaping by creating clear boundaries, serving as retaining walls, or adding decorative elements.

Importance of Kerb Stones

Strengthen Pavements

Kerb stones provide crucial support for pavements, accommodating pedestrian and vehicular traffic while directing rainwater to drainage systems to prevent water accumulation.

Simple Installation

With standardized sizes, kerb stones are easy to install by simply positioning and providing brief support, resulting in a durable base.

Durability

Natural kerb stones are inherently robust and long-lasting, requiring minimal maintenance while retaining their vibrant colors and stable surface.

Aesthetic Appeal

Stone kerbs add a clean, structured edge to pavements or gardens, maintaining their pristine look with minimal cleaning effort.

Advantages of Kerb Stones

Resilience

Kerb stones, made from materials like concrete or stone, withstand various weather conditions and external elements.

Ease of Upkeep

Requiring minimal maintenance, kerb stones have long lifespans without frequent repairs or replacements.

Tailored Solutions

Kerb stones offer customization flexibility, meeting specific aesthetic and functional needs of properties or locations.

Sustainability

Certain kerb stone variants emphasize environmental friendliness, such as permeable options that facilitate groundwater absorption, reducing runoff.

What is Kerb Material?

Common kerb materials include cut stone or cement concrete slabs. These materials, combined with side channels, effectively manage rainwater runoff from road surfaces.

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Purpose of Road Curbs (Their History and Application)

A road curb marks the edge where a sidewalk meets the roadway. Originating in the 18th century, curbs initially served aesthetic purposes but evolved into a safety feature recognized worldwide by city planners. Early curbs made of concrete and Purbeck stone replaced small wooden bollards used to separate pedestrian areas. The 1766 Paving and Lighting Act authorized the City of London Corporation to create elevated footways with Purbeck stone paving, and by the early 19th century, curbs became widespread, promoting safe pedestrian spaces globally.

Curbs serve purposes for both pedestrians and drivers, separating road and roadside areas. For drivers, curbs offer a parking and driving guideline, while for pedestrians, they provide a safe walking area. Curbs help channel motor vehicle traffic and raise driver awareness of pedestrians, ensuring safety. Structurally, curbs support pavement edges for accessibility. However, high-speed vehicles hitting curbs can lead to vehicles veering towards sidewalks, thus curbs are often absent on high-speed or rural roads. In rainy and cold cities, curbs direct water and snow towards drains, decongesting roads.

There are many styles and types of curbs based on shape, material, height, and combination with other components. Materials vary from asphalt, stones, masonry blocks, to Portland cement concrete, depending on the pavement material, curb function, and construction needs. For example, asphalt curbs, formed with paving machines, are less expensive if built simultaneously with road pavement but are less durable than concrete curbs.

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