Ag Mech II concrete I

A form:

• is something you fill out

• structure used to hold concrete in shape until it hardens

• Is not needed in the summertime

• none of these answers

When a footing is dug for a foundation, the ___ acts as the form.

• soil

• 2x4s

• concrete

• none of them

Wood or ___ can be used for a concrete form.

• metal

• glass

• plastic

• cardboard

It is best to use 2 x 4 or 2 x 6 lumber for forms so that:

• The forms will be heavy

• The forms look better

• The forms won't bend or warp

• The forms will be light

When the weather is warm, forms can stay in place for _____

• 2-3 hours

• 2-3 months

• 2-3 weeks

• 2-3 days

_____ concrete involves getting the surface to the proper grade and smoothness.

• screeding

• scraping

• finishing

• moving

The first step in finishing concrete is ____

• screeding

• trowling

• smoothing

• floating

A __ is used to impact the concrete at the surface and make it easier to finish.

• screed

• bull float

• trowel

• broom

Use a broom when you want the concrete to have a ___ surface

• slippery

• non-slip

• smooth

• none of these

The three dry ingredients in concrete are:

• Sand, silt, clay

• sand, gravel, portland cement

• sand, clay, portland cement

• sand, gravel, mortar