Model # 04010055

Internet #202188453

Store SKU #383759

Rapid Set 55 lb. Mortar Mix
0727096305559

Rapid Set

55 lb. Mortar Mix

  • Sets in just 15 minutes
  • Structural Strength in just 1 hour
  • Easy to use, just add water
$ 17 47
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Frequently Bought Together

Frequently Bought Together

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Product Overview

  • Sets in just 15 minutes
  • Structural Strength in just 1 hour
  • Easy to use, just add water
Rapid Set Mortar Mix is a high quality mortar that is suitable for vertical and overhead applications. It is ideal when rapid strength gain, high durability, and low shrinkage are desired. Use Mortar Mix for general and structural concrete repair, stucco and plaster repair, one-coat exterior plaster, mortar beds, underlayment, and formed work. Mortar Mix sets in 15 minutes and is ready to drive or build on in one hour. Durable in wet environments, it can be applied from 1\2 in. to 6 in. thick. Mortar Mix is a blend of high performance Rapid Set cement with quality sand. Mortar Mix offers superior resistance to chemical attack. It is non-metallic and no chlorides are added. Mortar Mix allows the repair areas to be painted, coated, or sealed quickly after application. Under dry conditions, water-based coatings such as latex paint can be applied after the product is hardened, which usually takes one to four hours. Solvent-based and impermeable coatings such as oil based paint and epoxy can be applied in 16 hours.
  • Fast setting - hardens to structural strength in 1 hour
  • Ultra durable - over 6,500 psi ultimate strength
  • Crack resistant, long-life formula
  • Bonds to concrete, brick, stone and many other surfaces
  • High performance, eco-friendly hydraulic cement formulation
  • Easy to use - just add water
  • Meets ASTM C928 requirements
  • One 55 lb. bag yields 0.5 cu. ft.
  • Learn more about concrete and cement here in our Buying Guide
  • California residents see Prop 65 WARNINGS

Product Overview

  • Sets in just 15 minutes
  • Structural Strength in just 1 hour
  • Easy to use, just add water
Model #: 04010055
Sku #: 383759
Internet #: 202188453

Rapid Set Mortar Mix is a high quality mortar that is suitable for vertical and overhead applications. It is ideal when rapid strength gain, high durability, and low shrinkage are desired. Use Mortar Mix for general and structural concrete repair, stucco and plaster repair, one-coat exterior plaster, mortar beds, underlayment, and formed work. Mortar Mix sets in 15 minutes and is ready to drive or build on in one hour. Durable in wet environments, it can be applied from 1\2 in. to 6 in. thick. Mortar Mix is a blend of high performance Rapid Set cement with quality sand. Mortar Mix offers superior resistance to chemical attack. It is non-metallic and no chlorides are added. Mortar Mix allows the repair areas to be painted, coated, or sealed quickly after application. Under dry conditions, water-based coatings such as latex paint can be applied after the product is hardened, which usually takes one to four hours. Solvent-based and impermeable coatings such as oil based paint and epoxy can be applied in 16 hours.

  • Fast setting - hardens to structural strength in 1 hour
  • Ultra durable - over 6,500 psi ultimate strength
  • Crack resistant, long-life formula
  • Bonds to concrete, brick, stone and many other surfaces
  • High performance, eco-friendly hydraulic cement formulation
  • Easy to use - just add water
  • Meets ASTM C928 requirements
  • One 55 lb. bag yields 0.5 cu. ft.
  • Learn more about concrete and cement here in our Buying Guide
  • California residents see Prop 65 WARNINGS

Info & Guides

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Specifications

Dimensions

Coverage Area (cu. ft.)
0.5
Product Depth (in.)
14
Product Height (in.)
5
Product Length (in.)
22

Details

Color Family
Gray
Compression Strength (psi)
7000
Features
Crack Resistant,Fast Setting,Paintable,Pre-Mixed,Sealable,Stainable
Material
Mortar
Product Weight (lb.)
55lb
Use Location
Ceiling,Floor,Wall
Working Time (min.)
15

Warranty / Certifications

Manufacturer Warranty
1 Year Limited Warranty

Specifications

Dimensions

Coverage Area (cu. ft.)
0.5
Product Depth (in.)
14
Product Height (in.)
5
Product Length (in.)
22

Details

Color Family
Gray
Compression Strength (psi)
7000
Features
Crack Resistant,Fast Setting,Paintable,Pre-Mixed,Sealable,Stainable
Material
Mortar
Product Weight (lb.)
55lb
Use Location
Ceiling,Floor,Wall
Working Time (min.)
15

Warranty / Certifications

Manufacturer Warranty
1 Year Limited Warranty

Questions & Answers

Couldn't use, turned to rocks in less than 10 minutes...what happened? I read all of the informat...

Couldn't use, turned to rocks in less than 10 minutes...what happened? I read all of the information on this product, including all of these Q&A's on this site. It was my first time using it....I mixed 55 pounds outside in a pan, then transferred half to my first plastic bucket, while second half was being transferred to another bucket by another person. By the time, I traveled 75 feet with it, I saw what I had now, but I dumped it anyway where my shower pan was to be set, I had nothing but cement rocks. The temperature of this material was extremely, extremely warm, and the time to solid was half what the information noted. It is of no use to me and will be trashed. I figure we had 15 minutes, instead of 20, and that included troweling it into place, but had far less than 10. What happened here?
Asked by: CP
Add Flow Control
Answered by: Chuck
Date published: 2019-04-12

Can you just make a little bit or do you have to make the whole box at once?

Can you just make a little bit or do you have to make the whole box at once?
Asked by: RockingIt
mirroring the others, or most of them, i'd suggest you mix enough to use in 15 minutes. as long as you keep the balance dry and not exposed to the rain or weather, the box instructions say it will keep a minimum of one year in storage. it does harden up fast for a mortar. RapidSet does have additives to extend the finish time but i haven't tried them to date.... this product is versatile and reliable in my experience.
Answered by: HowardinPA
Date published: 2019-02-08

can you use it for a chimney crown/cap?

Asked by: jo
I didn't use it for that purpose but I don't see why not, especially if you follow the finishing/curing directions. I chose this because of it's structural strength. Read the details on RapidSet Mortar Mix at https://www.ctscement.com/datasheet/MORTAR_MIX_Datasheet_DS_003_EN_23?c=REPAIR%20&t=Homeowners
Answered by: computerie
Date published: 2019-02-03

i want to put a slope over an existing patio from 2" down to feathered edge. can i use this produ...

i want to put a slope over an existing patio from 2" down to feathered edge. can i use this product? area is apprx. 300 sq feet.
Asked by: Edo
The aggregate (sand) in this mix is too large to get to a feather edge.
Answered by: DreamHomeSupply
Date published: 2019-01-15
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Customer Reviews

55 lb. Mortar Mix is rated 4.3 out of 5 by 237.
Rated 5 out of 5 by from This stuff is fabulous! Working on our beach... This stuff is fabulous! Working on our beach shorewall (Lake Erie) and cleaning up some porosity in our concrete pour. My only caution would be that it sets up so quickly that you could never use a cement mixer or a large batch for that matter. Working alone I mixed about a 1/4 of a bag at a time in a 5 gallon bucket and hustled to trowel it on. Works easily like regular mortar as no gravel etc. Two people would be ideal as keeping the tools and bucket clean is an issue. I can see how this stuff could be used overhead but fortunately had just sidewall work. It is hard in 15 minutes and will then drink water like a sponge for the next 24 hours. I use a 2 gallon pressure sprayer to keep it damp for 48 hours or so. For the non-professional I would suggest that you mix a very small batch to get a feel for it as it sets up all at once and very fast. If it could be made to set up about 5 or 10 minutes slower it would be spectacular, and somewhat less stressful to work.
Date published: 2019-02-06
Rated 4 out of 5 by from Does the job well-- but sets fast!! I had a big horizontal crack on my concrete retaining wall and was having no luck repairing it with regular concrete mix. It wouldn't stick, it would just flop out. Plus, I don't know if my mixing skills are poor but even after a couple of days I could pick up the leftovers and break the chucks with my bare hands. (I tried several mix ratios, no luck with any of them.) I read about this mortar mix and decided to try it in an un-repaired section. Wow, did it work wonders! No problem sticking in place and strong as an ox when it dried. I took a piece of rebar and chiseled out the other stuff I'd been using (not hard to do, it just flaked right out) and redid the repair with this. How I wish I hadn't wasted three days of experimentation with the other stuff. As others have said, this mix sets *fast*-- you have about 10 minutes of workable use before you're dealing with a brick in your bucket, so make sure to mix in small quantities. But it works great if you take that into account.
Date published: 2015-01-02
Rated 5 out of 5 by from Used it to do a cast in place concrete counter... Used it to do a cast in place concrete counter top. Easy to use and sets up quick. Strong enough that you don’t need to use any reinforcements.
Date published: 2019-03-19
Rated 1 out of 5 by from Product sets up far faster than stated. You wind up with, if mixing in wheel barrow, approximatel... Product sets up far faster than stated. You wind up with, if mixing in wheel barrow, approximately 5-6 inches of solid material that you must break up using hammer. Product should be added to project dry, then water added to suit, in order to provide better control. Wish I had a photo. Nothing like breaking product with hammer; then placing it in dumpster, where it resembles a "demo", vs a product used to build/improve.
Date published: 2019-02-20
Rated 5 out of 5 by from BEST MORTAR EVER MADE! Trying to save a deteriorating cellar foundation wall from the early 1940's. The walls were power washed and had/have areas that have lost 2" to nothing over the years from water and plain lack of maintenance. I purchased a couple 55 lb bags and started repairing the cracks and loose areas that required mortar repair prior to parging. That time consuming task did cause me to loose 3/4's of the first bag. Then I re-read the instructions and went and purchased the "SET CONTROL" packs and used one per 55 lb bag. Then two per bag. You must add it to the water BEFORE you add the mortar. Once I got the directions correct it went on like butter and I have since used 25 - 55lb bags and almost 50 of the Set control packs. Let me tell you, there is nothing out there that works like this. The walls are like steel and I am showing a few tradesmen the difference between this and just using standard S or N type mortar for walls in this condition. I have also replaced 1 pint of the water with 1 pint of concrete latex bonder and sprayed the wall prior to applying the mortar with bonder following the manufacturers directions for that as well. Finished well with spraying with light water and using a mag float but you must be appreciative of the set time. See the before and after pics of two of the walls we are working on.
Date published: 2013-09-05
Rated 2 out of 5 by from Want to talk about fast setting? This stuff hardens in... Want to talk about fast setting? This stuff hardens in seconds! I poured 5 bags in a small slab (fireplace hearth). Even having the correct amount of water ready and all tools available to quickly mix each bag, and an assistant, it was impossible to pour them fast enough. Wow! Hard to work with!
Date published: 2019-03-26
Rated 5 out of 5 by from Much more economical than the smaller boxed option. Mixed easily with water on a plastic sheet, p... Much more economical than the smaller boxed option. Mixed easily with water on a plastic sheet, placed above a 24 inch square board. Set quickly in below freezing temperature, used with pieces of brick to close gap in cinder block garage wall. Bye bye mice!
Date published: 2019-02-26
Rated 4 out of 5 by from I probably should have used a stucco color coat. ... I probably should have used a stucco color coat. The different mixes didn't blend all that well, so it looks like different material Some of the sand had fairly large tiny stones that prevented getting the kind of smooth coat I was looking for.
Date published: 2019-03-31
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