Get our free book (in Spanish or English) on rainwater now - To Catch the Rain.

CCAT alternative building materials testing

From Appropedia
Jump to: navigation, search
Sample photo caption.

Spring Semester 2018 the CCAT Green Building class performed several weathering and strength tests on a set of alternative building materials. The following is the results of those tests.

Alternative Building Materials[edit]


Materials tests were performed on several masonry and concrete alternative building materials, these included: cob, hempcrete, and papercrete. The recipes for each material are as follows:


  • 1 part clay
  • 1 part sand
  • 1 part straw

Several mixes of cob were used with slight variations in proportion of clay sand and straw, as well as both course and fine sand. The results presented represent an average of multiple mixes.


The hempcrete built in the Spring 2018 class failed to remain structurally sound after curing, so hempcrete from a previous semester was used instead. The recipe for this hempcrete is unknown, but a generic hempcrete recipe is as follows:

Hempcrete Binder

  • 4 parts Hydrated Lime
  • 1 part Portland Cement


  • 4 parts Hemp
  • 1 part Hempcrete Binder

Project goals[edit]

Describe project goals here.

To make a numbered list use the pound sign:

  1. Like this
  2. and like this
  3. See Help:Contents for more formatting code.


Describe your design here.

Next level heading[edit]

You may need deeper level headings. Just keep adding equal signs to get that.


You may describe your costs here.

header 1 header 2 header 3
row 1, cell 1 row 1, cell 2 row 1, cell 3
row 2, cell 1 row 2, cell 2 row 2, cell 3

See Help:Tables and Help:Table examples for more.


Your discussion.

Next steps[edit]

The next steps.


Your conclusions.


Contact details[edit]

Add your contact information.