What are regulations on machines and equipment for spreading asphalt, clear asphalt to ensure safety at construction sites in Vietnam?

What are regulations on machines and equipment for spreading asphalt, clear asphalt to ensure safety at construction sites in Vietnam?

Pursuant to Section 2.5.5 of the National technical regulation on safety in construction QCVN 18:2021/BXD promulgated together with Circular 16/2021/TT-BXD stipulating machines and equipment for spreading asphalt, clear asphalt to ensure safety at construction sites in Vietnam as follows:

2.5.5.1 The front floor of the sprayer shall be covered (or have a structural layer) with a grained metal sheet to prevent slipping.

2.5.5.2 Vertical mixing tanks shall be enclosed with wooden or metal plates and have openings for observation, lubrication and maintenance.

2.5.5.3 Bitumen buckets, troughs, hoppers (for discharging and spreading) bitumen must be covered sufficiently to ensure safety.

2.5.5.4 The sprayer shall have a fire shield with an opening for observation.

2.5.5.5 Avoid the risk of fire due to foaming:

a) The bitumen vessel (pot) must have a device to prevent the foam from coming into contact with the combustion chamber (chamber); or

b) Use only non-foaming products.

2.5.5.6 When asphalt mixing plants are operating on (or close to) traffic roads, a traffic safety control and coordination system must be established and workers are required to wear protective clothing. optical.

2.5.5.7 At the workplace, there must be a sufficient number of fire extinguishers in good working order and not less than 02 (two) extinguishers.

2.5.5.8 The material is loaded into the mixing tank only after the drying drum has been warmed up.

2.5.5.9 Do not use open fire to check the amount of asphalt in the tank (tank).

2.5.5.10 Do not use open fire for the purpose of heating the thinner.

2.5.5.11 If the burner flame is extinguished:

a) Immediately cut off the fuel supply (for combustion);

b) The combustion tubes must be carefully vented by fans to prevent backfire.

2.5.5.12 The inspection hole in the cooking vessel shall not be opened, if the pressure in the vessel is higher than the outside air pressure.

What are regulations on road surface finishing machines to ensure safety at construction sites in Vietnam?

Pursuant to Section 2.5.6 of the National technical regulation on safety in construction QCVN 18:2021/BXD promulgated together with Circular 16/2021/TT-BXD stipulating road surface finishing machines to ensure safety at construction sites in Vietnam as follows:

2.5.6.1 Pavement finishing machines (such as those for laying bricks, paving slabs, pouring concrete or other material) shall be constructed so as to prevent workers from walking under the container.

What are regulations on construction rollers to transport, excavate soil, materials and make roads in order to ensure safety at construction sites in Vietnam?

Pursuant to Section 2.5.7 of the National technical regulation on safety in construction QCVN 18:2021/BXD promulgated together with Circular 16/2021/TT-BXD stipulating construction rollers to transport, excavate soil, materials and make roads in order to ensure safety at construction sites in Vietnam as follows:

2.5.7.1 Before compacting the roadbed with a road roller, it is necessary to check the quality of the soil foundation and general safety, especially at the edges of the slope (for example, riverbank, dyke slope, road slope).

2.5.7.2 When moving downhill, the roller must be geared.

2.5.7.3 When the roller is not in use:

a) The brake must be applied;

b) The engine must be set to the lowest gear if the roller is facing uphill;

c) The engine must be set to reverse gear if the roller is facing downhill;

d) Turn off the machine (turn off all electrical switches and controls);

d) The wheels must be tightly packed.

Best regards!