Questions tagged [cement]

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2answers
75 views

Backfilled concrete piers with more concrete

I recently poured some concrete piers with sonotubes. Not sure why I did this, but some of them I had the tubes about 1 foot into each hole. I started with filling the tubes and then backfilled around ...
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30 views

Waterproofing mortar over hydraulic cement

A 2sqft section of my poured-concrete basement wall has begun weeping. It seems that the concrete was not mixed thoroughly in this area and after 80 years the water has found its way through. There is ...
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1answer
33 views

Leveling Cement to lay laminate flooring

We ripped up carpet in our hallway and found multiple variations of cement heights. What is the best way to fix the issue before laying the flooring so it doesn't crack? The 3 triangles in the picture ...
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1answer
41 views

Can I repair a broken cubic/patterned breeze block with plaster or something similar?

At my place there is a feature wall with those patterened cubic breeze blocks. A couple of them are broken (eg some of the "spokes" are missing). Is it possible to repair these with some ...
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1answer
74 views

Would surface-bonding cement be appropriate for this?

I would like to refinish an old wall of previously finished CMU blocks and bricks. See these pictures: (full-size images also available at https://www.dropbox.com/sh/ryr4m5adx6cd22c/...
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2answers
75 views

How to repair cracks around drain

Every time it rains (or we use the washing machine or sink), water goes down the cracks around the drain. And then it gets sucked up into the kitchen through the cement floor. How do I repair it? And ...
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4answers
305 views

Can cement board extend beyond the tiled area on bathroom walls?

I have this layout and all the areas marked with green will get tiles I am not sure about the area around the window (marled with diagonal green lines) The area I have doubts about is the area above ...
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0answers
63 views

How can I use 8' chain link terminal posts for a 6' fence?

My sister bought some material so I could build her a chain link fence. I never built one before and don’t know what exact measurements would I need. She wants a 6ft fence so she bought the mesh as ...
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0answers
35 views

Fast set concrete or self leveling concrete for the mounds under the shower base?

This is a follow up for this question Do I still need concrete mounds under my shower if the floor is perfectly level (I poured self leveling cement) The manufacturer instructions say "mounds of ...
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0answers
31 views

What type of cement (grout) to use when fixing pool tiles and walls?

The cement in between the tiles on my pool is breaking, also, some parts of the wall near the pool are also breaking. I'm a total newbie regarding cement and similar materials, so I'm at a loss on ...
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0answers
13 views

Green Glue - Cement Board with vapour barrier

I’m installing cement board for the shower. I am planning on 1 sheet (0.5”) against the studs and then a 2nd sheet (0.5”) with vapour barrier in between. I want to increase soundproofing by using ...
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1answer
67 views

Red Guard application

My bathroom was gutted to the studs. Now we are to the point of mudding drywall. I'm wondering if I need to use red guard on the sub floor and green board (around bathtub shower) before I install ...
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2answers
109 views

Should Cement Patio be Poured Level with Foundation?

We want to pour cement at the front door but aren't sure if we should pour it below, level with, or above the existing foundation. If we pour it above, wouldn't there be a good chance water would be ...
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1answer
133 views

Can I level basement floor with cement board and self-leveling cement?

I have about a 1" height difference on my concrete basement floor. My understanding this was for drainage in case of flooding. I have a wall in the way of where anything could potentially drain ...
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2answers
357 views

How to seal a foundation wall hole 7' feet deep around a 2" pipe in a cold heavy snow climate [duplicate]

Our foundation has a 2" hole for the water main / well pipe which is about 7' below the ground outside. During spring thaw when there is several feet of snow melting, the ground gets saturated, ...
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1answer
88 views

Installing a 1/2 above ground pool

I had to remove a pool because the wall rotted and split. It was a 4x12 and 18 inches in the ground. I want to put it on a cement base. There already is a sand base there since the old pool was on ...
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1answer
83 views

Spalling and Efflorescence

I just bought my first home, on one wall I can see that under the insulation we have some concrete spalling and Efflorescence. How serious is this? My plan is to open up the insulation there and take ...
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2answers
45 views

Pavers mortared to cement - how to grout joints

In my front yard I have a curved walkway made out of cement. The cement walkway is about 45 inches wide and sits on top of some compacted dirt. This past weekend I used some exterior thinset mortar (...
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0answers
40 views

What is the best proportion sand/cement to do pavers?

I want to make my own patio using pre-made molds. I would like to know if I can use only cement and sand. Will it be resistant or do I need to add aggregates. What should be the ratio?
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2answers
231 views

Will this arrangement of bricks be a good base for a concrete floor for a garden shed?

I am building a 6ft x 4ft garden shed which will have a concrete base. I've levelled some ground, built a frame, and made a floor out of old bricks. The ground is fairly clay-heavy. I've been ...
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1answer
43 views

Sealing 2-ft square hole in cement beneath tub

We are having our bathroom in the basement redone. Having a tub installed and the installer cut a 2 ft wide hole in the floor beneath the tub. after the tub is installed I was told that they no longer ...
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1answer
615 views

Should I be concerned about concrete/cement sealer fumes?

Full disclaimer, I don’t know anything construction really and this is not a project I am working on. Our rental unit is having the balcony redone right now, the flooring is pebbles embedded in cement/...
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2answers
366 views

How to remove bricks cemented on patio floor? Who do we hire? [closed]

My patio has some bricks cemented on top of older ones that I wish to remove. What kind of service do we need to hire for having the top bricks removed? Cement or mortar was used to set the bricks.
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1answer
79 views

Enclosing a breezeway between house and garage, (there is an existing roof )

I am in Calif. I would like to enclose my breezeway. At front of house would be solid, possibly a transom window at top. At back yard side of breezeway, a set of French doors with a vinyl window at ...
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2answers
343 views

My concrete is brittle like the density of a cookie

I've started making some small decorative concrete objects. Like trays, potters, table legs, etc. But recently my pours all go straight to the garbage bin. The problem (or the symptom) is that the ...
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1answer
57 views

How to prep and level part of my garage when there is a 6" difference in hight?

Specs: Garage floor is cement 24'x32' (except where the car will park.) far side is approximately 6"lower than the other. (~1° slope) large crack running the full length. a number of smaller ...
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0answers
117 views

Identifying magnesite flooring

TLDR: resistivity values and other identifying features for magensium oxychloride (Sorel) cement please. I have a 1950s council house where the ground floor is 2 types (one room dark brown, one room ...
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0answers
33 views

Is it ok to cover this cement patch with lime mortar?

I previously asked about a patch on a deep hole which has been giving off a strong odour. In the comments people mentioned that the cement had probably been mixed with other materials hence an ...
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2answers
759 views

How long for this cement smell to go?

Somebody recently came and filled this deep hole up with cement. It has been giving off a strong odor. Does cement typically smell and how long will it take for the smell to go mostly and eventually ...
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3answers
328 views

Cement vs. mortar for embedding stones in drive way

I will be scraping a dirt/gravel driveway down two inches and laying flat stones of various sizes and thicknesses. Need to have the tops at the same level, so some will need to have something ...
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0answers
76 views

Cracks in Cement Floor of Shed

My house has an attached garage similar to this: The garage has rooms above it, not sure if that's worth mentioning but I'll note it. Out the back of the garage where the house would normally end, it ...
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1answer
25 views

New basement - want to seal concrete

What would be the best product to seal a basement floor (brand new) that would not be slippery? How long should I wait before applying product?
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4answers
406 views

Will a cement mixer extend the working life of mortar?

I'm going to do some brickwork on my own. Last time it was quite the job to mix up mortar and get it laid before it started to go off (I know, working in pairs would be helpful!). I know I can ...
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1answer
56 views

I’m needing advice on making garden spheres [closed]

I am trying to make garden spheres. First attempt was concrete..no success too much aggregate need a smooth mix. 2nd attempt was cement, much smoother but doesn’t come in quickset so Bunnings staff ...
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2answers
201 views

Using white cement + water to mould a part [closed]

I'm trying to cast a small robotics part for a local college. Its small in size but needs to be heavy. So far I've created one with epoxy resin and it is okay. However, for the same size, I wanted ...
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0answers
17 views

Can i use non-tiled cement board -floor & shower shower stall?

Ground up bathroom build on (composite board) deck. I want an industrial look/not using tile. Some leakage is OK as it will be going through deck onto soil but would like to avoid mold. If I can keep ...
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3answers
2k views

How to replace loose 4x4 wood fence post with a steel post

The original 4x4 wood fence post for my home's side gate (that holds the catch part of a gate latch) is very loose and wobbles. The post is surrounded on 3 sides with my concrete walkway, and the 4th ...
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1answer
55 views

Exterior Cement Patio poured all the way to exterior brick of the house. Water proofing options?

My house was built in 1955, at some point (unknown) a cement patio was poured beside the house. The cement was poured all the way to the brick work of the house (No visible gap or nor is there a good ...
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2answers
34 views

Securing brick, rock or pavers on artificial turf

I want to build a backyard putting green. The company I am going to buy the turf from (Garden-mark) says to lay the artificial grass over prepped ground as if laying pavers and secure the turf with ...
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1answer
520 views

Is it possible to use ABS cement to glue together THREADED ABS union fitting on P-trap for permanent connection?

Is it possible to use ABS cement for threaded ABS union fitting on P-trap for permanent connection? Or it won't be secure enough even if it glued together with cement? Or need to actually replace with ...
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1answer
35 views

Generic water-based polyurethane for concrete desk?

I recently made a desk with a concrete top. It was a little rough so I smoothed the top with a liquid mix of just cement and water. I'm now preparing to finish it. I have a pot of water-based ...
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0answers
30 views

Concrete for making concrete molds

I am trying to make some concrete items such as trays, vases, bowls etc. Can anyone please advise on recipes/ratios for this? I would like to make these in white, black and grey and want a smooth ...
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2answers
859 views

Do I really need 140 lbs of cement for a 5", 5' high vinyl fence post (31" in the ground)?

140 lbs Seems like a lot of cement, I was hoping to get by with just one 80# bag. I guess the hole would be 12" per auger rental advice. I Live in Montana, not a lot of moisture but ground freeze ...
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1answer
496 views

Will surface scuffs be a long-term issue in a new concrete walkway?

I'm probably being paranoid but would like to get some expert opinions as this is my first time dealing with concrete. I had a concrete path laid in the garden, around 80-100mm thick. It was laid and ...
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0answers
18 views

How to add small ramp or level painted concrete?

I have a small patio (10'x6') with painted (oil based) concrete. It has a slightly uneven slope resulting in standing water with heavy rain. I would like to add a small ramp/slope to the top of the ...
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1answer
449 views

p-trap installation by newbie: cement cure time

I was installing a new p-trap under the kitchen sink: Attached tailpiece to the sink no problem. Then I prepared a short piece of 1 1/2" ABS pipe, put a plumbing cement on it, inserted one end ...
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1answer
157 views

How to prepare vertical brick surface so Portland cement based mixtures (concrete, mortar) will adhere properly?

I have a sub grade vertical stack of perforated brick (foundation) which I need to coat in a thick layer of mortar or concrete in order to fill gaps, creating a flat surface for subsequent painting/...
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1answer
86 views

Blending new concrete patch fix

I'm back for another concrete-related question: I previously asked Fixing broken piece of concrete and got great answers from folks here. I went to HD this weekend and finally patched up the broken ...
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1answer
138 views

Best practice for filling a pit in a concrete slab?

I have in my barn (concrete floor) a pit, of about 36" x 60" x 10" deep which was originally used to install some machinery by the previous owner. I have no use for it, and would rather ...
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1answer
30 views

Best way to fix tile

One of our old tiles suddenly feel off, the others seem ok. What's the best to fix back. I don't think I'll be able to get a new tile to match, and I don't think I can chisel the old mortar off ...