Block G – Roadwork

Trends

Road surface materials used are now more environmentally friendly. There is a trend towards using recycled materials in road construction. Placing asphalt over concrete is becoming more common as well.

Related Components (including, but not limited to)

Aggregates, signage, barriers, culverts, manholes, catch basins, piping.

Tools and Equipment

See Appendix A.

Task 20 Installs road surface materials.

Context

Construction craft workers work with paving machines to spread concrete, asphalt and other sub-base materials. They manually spread, shovel and rake asphalt where the machines cannot operate. They also apply adhesives and primers, and modify and repair all road surfaces.

Required Knowledge

• K 1 types of chemical additives
• K 2 location of manholes and catch basins
• K 3 amount of paving materials to remove when repairing
• K 4 types of road surface materials such as concrete, asphalt, interlocking brick and chip seal
• K 5 types of sub-bases
• K 6 types of tools and equipment
• K 7 related hazards such as traffic and material temperatures
• K 8 sidewalk and pedestrian walkway construction

Sub-task G-20.01 Places road surface materials.

Key Competencies

• G-20.01.01 prepare and compact sub-base according to grade using compacting equipment
• G-20.01.02 apply adhesives and primers such as tack and water
• G-20.01.03 rake and compact road surface material to finish-grade
• G-20.01.04 feather and finish around manholes, catch basins and curbs according to road surface material being used
• G-20.01.05 manually compact road surfacing material using hand compactors
• G-20.01.06 place, lay, or spread road surfacing material such as concrete, asphalt and composite materials according to engineering specifications
• G-20.01.07 finish concrete using bull and hand floats to smooth surface in order to broom

Sub-task G-20.02 Repairs road surfaces.

Key Competencies

• G-20.02.01 select and use tools and equipment such as quick-cut saws, walk-behind saws, jackhammers and plate tampers
• G-20.02.02 cut paving materials to install utilities and components
• G-20.02.03 repair defects such as pot holes, cracks, wash-outs and heaved areas
• G-20.02.04 break surface materials and remove debris to prepare for resurfacing
• G-20.02.05 compact base, drill into existing concrete and install dowels using adhesives according to engineering specifications
• G-20.02.06 pour, lay, or spread road surfacing material such as concrete, asphalt and composite materials according to engineering specifications
• G-20.02.07 apply adhesives and primers to potholes to prepare for fill materials such as gravel and asphalt
• G-20.02.08 cut cracks with up-cut flat saw (walk-behind or road saw)
• G-20.02.09 remove debris using sandblaster and compressor
• G-20.02.10 seal joints using sealants according to engineering specifications

Task 21 Installs roadwork components.

Context

Construction craft workers are required to install culverts, barriers and signage. Additional certification may be required for the installation of roadwork signage. Safety is of the utmost importance when working on roadwork construction.

Required Knowledge

• K 1 types of barriers such as pedestrian, guard and jersey (no post)
• K 2 materials used for barriers such as concrete, steel and wood
• K 3 regulations regarding installation of barriers, road markings and signage
• K 4 applications of barriers such as temporary and permanent
• K 5 training, certification and PPE requirements
• K 6 types of road markings such as reflective tape and painted lines
• K 7 types of temporary and permanent road signs
• K 8 types of culverts such as galvanized steel, plastic and concrete
• K 9 sizes of culverts
• K 10 connection methods such as bell and spigot, clamped and butted

Sub-task G-21.01 Installs barriers.

Key Competencies

• G-21.01.01 select and use tools and equipment such as forklifts, drills, pry bars, post augers, rigging and boom trucks
• G-21.01.02 select barriers according to regulations and specifications
• G-21.01.03 determine location for barriers according to engineering specifications
• G-21.01.04 secure water-filled and sand-filled barriers using anchors and fasteners such as dowels and concrete piles

Sub-task G-21.02 Installs road markings and signs.

Key Competencies

• G-21.02.01 select and use tools and equipment such as measuring tapes, post augers, and sledge hammers
• G-21.02.02 place, paint or adhere road markings and signage according to jurisdictional regulations, and engineering specifications
• G-21.02.03 auger (bore hole) and backfill signage to secure in place
• G-21.02.04 place temporary signage and markings according to jurisdictional regulations

Sub-task G-21.03 Installs culverts.

Key Competencies

• G-21.03.01 select and use tools and equipment such as wrenches and levels
• G-21.03.02 assemble culvert sections according to manufacturers’ specifications
• G-21.03.03 install and compact bedding for culverts to achieve the required grade to ensure drainage
• G-21.03.04 backfill and secure culvert according to engineering specifications