Attaching a post to a concrete block wall
 

Need to repair a fence. For end post, am planning on attaching it (4x4
PT) to the edge of a concrete block wall. Dunno if the blox are filled
or not, so would assume not. The fence is a low (~5' high) "woven-wood"
job, made with 1/4" bender boards and 4x4 posts. Homeowner isn't
particularly picky, just wants to make sure their dog stays out of the
neighbor's yard.

Looking in the Simpson /Anchoring and Fastening Systems For Concrete and
Masonry/ book, it seems my choices a

o "Titen" screws
o "Heli-Tie" helical wall ties
o Lag screw w/expansion shield

(I'm leaving out the epoxy ties, and a couple other fasteners I just
plain don't want to use).

The screws (Titen) look suspicious to me, screwing into crumbly
concrete. But the cover of the book shows an actual job using them,
where four large steel eyes, each screwed in with 6 Titens, were used to
lift 20,000 lb. slabs, so I guess they do work.

Actually, I'm tempted to go with an expansion anchor, like a Sleeve-All
or a Wedge-All. (I've used similar fasteners from other manufacturers
but not Simpson's.)

So what do the expert builders out there say? How would you do this?


--
Washing one's hands of the conflict between the powerful and the
powerless means to side with the powerful, not to be neutral.

- Paulo Freire

Attaching a post to a concrete block wall
 

DN:

For something cosmetic like a fence, I like to use Tapcon screws.
I presume the Titens are like these. They're fast and hold well,
and you can drill through the wood instead of marking.

A P

Attaching a post to a concrete block wall
 

On Nov 13, 10:52*pm, wrote:
DN:

For something cosmetic like a fence, I like to use Tapcon screws.
I presume the Titens are like these. *They're fast and hold well,
and you can drill through the wood instead of marking.

A P

I too was suspicious of the Simpson Titens screws but they work & are
a good product.

Tapcons could also work.

Actually Tapcons & Titens suplly less splitting force on the base
material than a wedge product.

If the wall is ungrouted you could also use toggle bolt or a toggle
stud. If the wall is ungrouted you're only going to the block's face
thickness.

I recommend SIKA Anchor Fix #1 (gels in ~5 minutes, full strength in
less than 1 hour dispenses from standard caulking gun) threaded rod or
bolts with the heads ground down.


cheers
Bob

Attaching a post to a concrete block wall
 

David Nebenzahl wrote:

Need to repair a fence. For end post, am planning on attaching it (4x4
PT) to the edge of a concrete block wall. Dunno if the blox are filled
or not, so would assume not. The fence is a low (~5' high) "woven-wood"
job, made with 1/4" bender boards and 4x4 posts. Homeowner isn't
particularly picky, just wants to make sure their dog stays out of the
neighbor's yard.

Looking in the Simpson /Anchoring and Fastening Systems For Concrete and
Masonry/ book, it seems my choices a

o "Titen" screws
o "Heli-Tie" helical wall ties
o Lag screw w/expansion shield

(I'm leaving out the epoxy ties, and a couple other fasteners I just
plain don't want to use).

The screws (Titen) look suspicious to me, screwing into crumbly
concrete. But the cover of the book shows an actual job using them,
where four large steel eyes, each screwed in with 6 Titens, were used to
lift 20,000 lb. slabs, so I guess they do work.

Actually, I'm tempted to go with an expansion anchor, like a Sleeve-All
or a Wedge-All. (I've used similar fasteners from other manufacturers
but not Simpson's.)

So what do the expert builders out there say? How would you do this?

--
Washing one's hands of the conflict between the powerful and the
powerless means to side with the powerful, not to be neutral.

- Paulo Freire

The screws do work, if you drill the pilot holes properly. Folks who
can't hold a drill straight and wallow out the hole as they drill will
have problems with them as the hole dia is critical with them. If the
application is only applying side / shear loading on them they are
probably the easiest to use.

Attaching a post to a concrete block wall
 

On Nov 13, 10:46*pm, David Nebenzahl wrote:
Need to repair a fence. For end post, am planning on attaching it (4x4
PT) to the edge of a concrete block wall. Dunno if the blox are filled
or not, so would assume not. The fence is a low (~5' high) "woven-wood"
job, made with 1/4" bender boards and 4x4 posts. Homeowner isn't
particularly picky, just wants to make sure their dog stays out of the
neighbor's yard.

Looking in the Simpson /Anchoring and Fastening Systems For Concrete and
Masonry/ book, it seems my choices a

o "Titen" screws
o "Heli-Tie" helical wall ties
o Lag screw w/expansion shield

(I'm leaving out the epoxy ties, and a couple other fasteners I just
plain don't want to use).

The screws (Titen) look suspicious to me, screwing into crumbly
concrete. But the cover of the book shows an actual job using them,
where four large steel eyes, each screwed in with 6 Titens, were used to
lift 20,000 lb. slabs, so I guess they do work.

Actually, I'm tempted to go with an expansion anchor, like a Sleeve-All
or a Wedge-All. (I've used similar fasteners from other manufacturers
but not Simpson's.)

So what do the expert builders out there say? How would you do this?

--
* Washing one's hands of the conflict between the powerful and the
powerless means to side with the powerful, not to be neutral.

- Paulo Freire

For cinder block and brick, outdoors, any ancor will come loose
especially on a gate or fence that vibrates. So i like to epoxy (pc11
2 part) whatever anchor I use as well, then they never come out and
are sealed from water etc. I dust out the hole real good, slather a
lot of epoxy into the hole and on the ancor, then anchor it with the
bolt. I hung an 8 foot cedar driveway gate from 2 epoxied hinges into
brick that never moved in 10 years.

Attaching a post to a concrete block wall
 

On 11/14/2008 8:11 AM RickH spake thus:

On Nov 13, 10:46 pm, David Nebenzahl wrote:

Need to repair a fence. For end post, am planning on attaching it
(4x4 PT) to the edge of a concrete block wall. Dunno if the blox
are filled or not, so would assume not. The fence is a low (~5'
high) "woven-wood" job, made with 1/4" bender boards and 4x4 posts.
Homeowner isn't particularly picky, just wants to make sure their
dog stays out of the neighbor's yard.

The screws (Titen) look suspicious to me, screwing into crumbly
concrete. But the cover of the book shows an actual job using them,
where four large steel eyes, each screwed in with 6 Titens, were
used to lift 20,000 lb. slabs, so I guess they do work.

So what do the expert builders out there say? How would you do this?

For cinder block and brick, outdoors, any ancor will come loose
especially on a gate or fence that vibrates. So i like to epoxy (pc11
2 part) whatever anchor I use as well, then they never come out and
are sealed from water etc. I dust out the hole real good, slather a
lot of epoxy into the hole and on the ancor, then anchor it with the
bolt. I hung an 8 foot cedar driveway gate from 2 epoxied hinges into
brick that never moved in 10 years.

So would you epoxy in bolts (studs or Allthread), or epoxy in the Titen
fasteners? How about if I use epoxy on the Titens? Makes it a lot
easier, as I wouldn't have to somehow prop the bolts up until they set
(they'd be going into the wall horizontally).


--
Washing one's hands of the conflict between the powerful and the
powerless means to side with the powerful, not to be neutral.

- Paulo Freire

Attaching a post to a concrete block wall
 

On Nov 14, 11:59*am, David Nebenzahl wrote:
On 11/14/2008 8:11 AM RickH spake thus:







On Nov 13, 10:46 pm, David Nebenzahl wrote:

Need to repair a fence. For end post, am planning on attaching it
(4x4 PT) to the edge of a concrete block wall. Dunno if the blox
are filled or not, so would assume not. The fence is a low (~5'
high) "woven-wood" job, made with 1/4" bender boards and 4x4 posts.
Homeowner isn't particularly picky, just wants to make sure their
dog stays out of the neighbor's yard.

The screws (Titen) look suspicious to me, screwing into crumbly
concrete. But the cover of the book shows an actual job using them,
where four large steel eyes, each screwed in with 6 Titens, were
used to lift 20,000 lb. slabs, so I guess they do work.

So what do the expert builders out there say? How would you do this?

For cinder block and brick, outdoors, any ancor will come loose
especially on a gate or fence that vibrates. So i like to epoxy (pc11
2 part) whatever anchor I use as well, then they never come out and
are sealed from water etc. I dust out the hole real good, slather a
lot of epoxy into the hole and on the ancor, then anchor it with the
bolt. I hung an 8 foot cedar driveway gate from 2 epoxied hinges into
brick that never moved in 10 years.

So would you epoxy in bolts (studs or Allthread), or epoxy in the Titen
fasteners? How about if I use epoxy on the Titens? Makes it a lot
easier, as I wouldn't have to somehow prop the bolts up until they set
(they'd be going into the wall horizontally).

--
* Washing one's hands of the conflict between the powerful and the
powerless means to side with the powerful, not to be neutral.

- Paulo Freire- Hide quoted text -

- Show quoted text -

I epoxy wherever fastener meets brick and just fill the hole before I
insert, most fasteners have nooks and crannies or threads that let
some epoxy live between the two, the glob of epoxy in the hollow brick/
block behind the fastener also mushrooms out to prevent pull out.
Once that stuff hardens there is no reversing so if the bolt needs to
be removed someday you will have to just grind it off flush with the
wall.