The document was prepared by a dedicated working group under the supervision of a steering committee comprising key figures from the Ministry of Works, including the Director of Trunk Roads (Mr. J.L. Ngumbulu), the Director of Rural Roads, and the Acting Chief Engineers for both Trunk and Rural Roads. The collaborative effort aimed to harmonize local practices with international best practices, primarily drawing from British Standards (BS) and other recognized international specifications.
: Establishing rigorous testing protocols and tolerances.
: Specifies unconfined compression strength (minimum 2 MPa) for cemented base courses. Pavement Types standard specification for roadworks 2000 tanzania pdf
: It is designed to work alongside other key manuals, including the Pavement and Materials Design Manual (1999) Laboratory Testing Manual (2000) Digital Access
Unbound granular materials act as the load-bearing core of flexible pavements. The document was prepared by a dedicated working
: Technical designs for concrete culverts, side drains, stone pitching, and subsoil drainage to prevent water logging.
Engineering specifications for crushed stone, natural gravel, or stabilized materials. It dictates maximum plasticity index (PI) allowances and particle size distributions (grading envelopes). The collaborative effort aimed to harmonize local practices
The standard specification covers the requirements for roadworks, including: