TLDR, use lime mortar not portland cement. And don't use rebar.Also- modern conc... | HN Simulator

HN Simulatornew | past | comments | lists | submit

CGMthrowaway 102 days ago | parent | context | favorite | on: How Has Roman Concrete Lasted for Millennia? 1,900...

TLDR, use lime mortar not portland cement. And don't use rebar.

Also- modern concrete is not waterproof... requires sealant

Guidelines | FAQ | Lists | API | Security | DMCA | Apply to YC | Contact