Fixings and materials used in construction

​ Cement is a binding agent, a ​ (a)   powder that can be used to make a bonding ​ (b)   or added to ​ (c)   improving its ability to be ​ (d)   . Commonly used to shape bathroom floors and lay bricks

• fine
• paste
• sand
• shaped

Concrete uses ​ (a)   as a bonding agent. ​ (b)   and sand act as the main structural components, providing strength, stability, and bulk. ​ (c)   fills voids between larger aggregates and contributes to the concrete's surface ​ (d)   . 

• cement
• Aggregate
• Sand
• finish

Construction Adhesive - Ideal for ​ (a)   materials like ​ (b)   , plasterboard, and ​ (c)   ; provides strong, durable bonds ​ (d)   the need for screws or nails.

• bonding
• timber
• concrete
• without

Epoxy adhesive - combines ​ (a)   chemicals to provide a strong, durable bond for ​ (b)   bolts and rods in concrete. It is ​ (c)   to chemicals and weather, cures quickly, and is suitable for ​ (d)   applications.

• two
• anchoring
• resistant
• structural

Silicone adhesive - ​ (a)   in flexibility, ​ (b)   resistance, and moisture resistance, making it suitable for ​ (c)   and ​ (d)   -moisture environments.

• excels
• temperature
• indoor
• high

Acrylic adhesive - bonds ​ (a)   and strongly to many surfaces like metal, plastic, and glass. It is ​ (b)   , weather-resistant, and can ​ (c)   vibration and temperature changes, making it ideal for ​ (d)   and outdoor use.

• quickly
• durable
• handle
• indoor

Polyurethane adhesive - offers ​ (a)   strength, ​ (b)   , and abrasion resistance, making it ideal for ​ (c)   and ​ (d)   applications. 

• superior
• durability
• outdoor
• structural

Match the following

• Head

• 2

• Thread

• 3

• Shank

• 4

• Drive

• 1

match the screw to its application

• used to fasten decking boards

• 
• used to fasten timbers together

• 
• used to fasten metal sheets

• 
• used to fasten plastic roof sheets

• 
• heavy duty fixing for all applications

• 

Identify each of the following screw heads

• Slotted head

• 
• Phillips

• 
• torx drive

• 
• Hex drive

• 
• Hex head

•