soil lifts and compaction schedule for solid sand under a slab on grade home 4" conc floor?
soil lifts and compaction schedule for solid sand under a slab on grade home 4" conc floor?
(OP)
Soil lifts and compaction schedule for solid sand under a slab on grade home 4" conc floor? Home will have CMU frost walls.
Building a 2700 sq ft home. Using 4" conc floor and radiant hydronic heat with tubes in the concrete. My spec for the floor is the following, what if anything can or should be changed or is this JUST FINE?!
4" conc floor 4,000 psi mix
4" Type XIV EPS foam insulation, 6 mil PE beneath to prevent R value devaluation (. . . How about above it too??)
4" x 3/4" clean stone
8" compacted ABC class six to native material
6" native material
I copied this spec from another home drawing but it is probably either over or under specified for MY soil.
My soil is almost pure sand. I used a 20" auger on my track loader and got down 4 ft before running out of shaft length. EVERYTHING looked the same-- beautiful clean sand. Location: Sherburne County Minnesota, land is ON the ELK River, home site location on a hill 25 ft above the river plain and 200 yd from river itself.
My excavator questioned the need for the ABC class six. What do you guys think?
Building a 2700 sq ft home. Using 4" conc floor and radiant hydronic heat with tubes in the concrete. My spec for the floor is the following, what if anything can or should be changed or is this JUST FINE?!
4" conc floor 4,000 psi mix
4" Type XIV EPS foam insulation, 6 mil PE beneath to prevent R value devaluation (. . . How about above it too??)
4" x 3/4" clean stone
8" compacted ABC class six to native material
6" native material
I copied this spec from another home drawing but it is probably either over or under specified for MY soil.
My soil is almost pure sand. I used a 20" auger on my track loader and got down 4 ft before running out of shaft length. EVERYTHING looked the same-- beautiful clean sand. Location: Sherburne County Minnesota, land is ON the ELK River, home site location on a hill 25 ft above the river plain and 200 yd from river itself.
My excavator questioned the need for the ABC class six. What do you guys think?





RE: soil lifts and compaction schedule for solid sand under a slab on grade home 4" conc floor?
What will that do to the heating tubes??? Some might spec some reinforcing to resist that. I'd post the concrete question in the Material engineering other" room. They may differ from me.
RE: soil lifts and compaction schedule for solid sand under a slab on grade home 4" conc floor?
-- Will I have to hire and engin testing company to run density testing then during the compaction work?
-- MISTAKE! I WRONGLY posted the building code as 4000. It is 2500 psi in the case of interior slab. So not a problem for shrinkage probably.
RE: soil lifts and compaction schedule for solid sand under a slab on grade home 4" conc floor?
RE: soil lifts and compaction schedule for solid sand under a slab on grade home 4" conc floor?
RE: soil lifts and compaction schedule for solid sand under a slab on grade home 4" conc floor?
4" conc floor(typical for radiant floor, even done with 2")
4" Type XIV EPS foam insulation, 6 mil PE beneath to prevent R value devaluation (. . . How about above it too??)
4" x 3/4" clean stone
8" compacted ABC class six to native material6" native material, compacted 3x w/ vibratory roller
the Radiant floor subcontractors will be mostly responsible for concrete, reinforcing(wire mesh, fiberglass) and any flow additives. I will spec no curing accelerants.