05-01-2015, 09:35 AM
on concrete and masonry, which you gotta have some of:
question: what are the generally available cement type materials in lower puna? what is their quality? are the local tradesmen skilled in using non-standard cementitious materials and techniques?
this is a serious question since my first very premium custom house in central california has suffered from high free alkalai cement. the only bulk source for cement (rumored source was japan) to the area at the time was already suspect but there was no viable alternative due to the large volume needed. we paid for a premium mix with numerous additives, but still trouble.
has anyone ever gotten pozzolan cement (volcanic or fly ash) working on the big island?
what about aggregates for concrete mixes? whats available locally? is it good quality?
question: what are the generally available cement type materials in lower puna? what is their quality? are the local tradesmen skilled in using non-standard cementitious materials and techniques?
this is a serious question since my first very premium custom house in central california has suffered from high free alkalai cement. the only bulk source for cement (rumored source was japan) to the area at the time was already suspect but there was no viable alternative due to the large volume needed. we paid for a premium mix with numerous additives, but still trouble.
has anyone ever gotten pozzolan cement (volcanic or fly ash) working on the big island?
what about aggregates for concrete mixes? whats available locally? is it good quality?