Two blocks
TEST 1
MIX: by volume
9 parts Hurd
1 part builders cement ( contains 20% flyash)
2 parts hydrated lime
drum mixer
make paste,
add hurd and
mix thoroughly >10 min
press firmly into moulds
add only sufficient water to make the mix workable.
Test in 30 days
I want to have 3:1 as my reference as it is the leanest mix
I will next make tests with
TEST 2
8 parts Hurd ( papercrete mix strength )
1 part builders cement ( contains 20% flyash)
2 parts hydrated lime
TEST 3
7 parts Hurd
1 part builders cement ( contains 20% flyash)
2 parts hydrated lime