GB/T 38107-2019 in English

Standard Formulation Background and Technology Evolution Analysis

Importance of Tactile Guidance Pavement Bricks:

• Provide necessary travel guidance for the visually impaired.
• Improve the safety of public places and prevent accidents.
• Conform to the international trend of barrier-free design and promote social inclusive development.

Material selection and technical requirements

Raw material specifications:

• Portland cement must comply with GB175 standards to ensure durability.
• Sand and gravel materials should meet the requirements of particle size and gradation to ensure the structural stability of pavement bricks.
• Fly ash must meet environmental protection requirements to reduce the impact on the environment.

Technical performance indicators

Key performance parameters:

• The height of the strip protrusion of the guide brick is not less than 4mm.
• The diameter of the dot of the prompt brick must be around 25mm, and the spacing must be reasonable.
• The flexural and compressive strengths meet the requirements of different grades.

Implementation Suggestions

Construction Precautions:

• Ensure that the bricks are firmly installed to avoid looseness that causes tactile failure.
• Carry out special inspections after paving, including the accuracy of the raised height and arrangement.
• Perform regular maintenance and replace damaged pavement bricks in a timely manner.

Improvement of Public Awareness:

• Strengthen social publicity of barrier-free facilities and improve public awareness of the blind path.
• Avoid parking or stacking items on the blind path.
• Encourage communities and units to participate in the construction of a barrier-free environment.