ATV-M 143 Part 5

The ATV-M 143 Part 5 [ATVM143-5a] has the aim that all tenderers understand the contract requirements when applied to the relining process according to ATV-M 143E Part 3 [ATVM143-3] unambiguously, that they can calculate their prices with safety and that they can avoid differences in competitiveness. This specification pamphlet can also be used as a base for other rehabilitation processes for repair of damage until other process-specific specifications become available.

As at present there are no generally accepted rules of technology in the shape of standards, guides for negotiation, etc., for relining processes, which have been defined, the instructing party should establish a requirement profile that, for instance, contains the following requirements or assumptions of the instructing party or queries of the tenderer:

General (references, environmental friendliness, ability to complete the work in groundwater, disposal of waste);
Preparatory work;
Material for prefabricated and non-prefabricated products;
Material properties;
Structural proof;
Installation and processing.

(Table 5.6.4.3.5.2-1) reproduces the minimum positions, which, according to [ATVM143-5a],"are to be carefully, project-specific and comprehensively formulated in the proposal request." Additional positions can be necessary for individual cases.

Table 5.6.4.3.5.2-1:

Specification positions for lining processes in accordance with ATV-M 143 Part 5 [ATVM143-5a]

Specification positions	Proposed unit	Long pipe and continuous pipe process	Short pipe lining	Close−Fit lining with pipes¹⁾	Cured−in−place lining ²⁾	Spiral lining
Arranging and clearing up	Flat rate	x	x	x	x	x
Traffic deviation	Flat rate	x	x	x	x	x
Sewer cleaning	Flat rate; m	x	x	x	x	x
Sewer inspection	Flat rate; m	x	x	x	x	x
Removal of obstacles	Piece; hour	x	x	x	x	x
Calibration	Flat rate; m	x	x	x	x	x
Blockage in sewer	Flat rate; m	x	x	x	x	x
Blockage for side inlets	Piece	x	x	x	x	x
Install. or pull−in excavation	Piece	x	N⁄A	N⁄A	N⁄A	N⁄A
Rehabilitation of badly connected side inlets	Piece	x	x	x	x	x
Structural calculation for liner	Flat rate	x	x	x	x	x
Supply and install liner	m	x	x	x	x	x
Connect side inlets by open cut method	Piece	x	x	x	x	x
Connect side inlets by trenchless method	Piece	x	x	x	x	x
Seal annular space	Piece	x	x	N⁄A	N⁄A	x
Grout annular space	m	x	x	N⁄A	N⁄A	x
Connect to manhole	Piece	x	x	x	x	x
Adapt to manhole channel	Piece	x	x	x	x	x
Test for leaktightness	Flat rate; m	x	x	x	x	x
TV acceptance	m	x	x	x	x	x
Deformation measuring of installed liner	Flat rate; m	x	x	x	x	x
Materials testing liner after installation	Flat rate	N⁄A	N⁄A	N⁄A	x	N⁄A
Work according to effort	Hour	x	x	x	x	x
¹⁾ Close−Fit lining without annular space ²⁾ Anchor hose lining process analogous to spiral lining

In addition, the specification sheet must define the type and extent of the quality assurance. According to [ATVM143-5a], it should be a special requirement that:

The tenderer gives proof of the suitability of his rehabilitation process taking the quoted requirements into account;
The tenderer ensures the quality within the scope of his own and third party supervision;
Sample pieces are taken in-situ from the installed piping if the liner only achieves its final shape after hardening on site after installation;
The tenderer must have the promised properties confirmed by a recognised testing institute.