Curing cover

[ajk1]

Does anyone have ASTM Standard C171, and if so can you tell me whether Table 1 therein deals with micro-perforated curing covers? I am reviewing our master specifications and checking that where we reference specific clauses and Tables in ASTM Standards, that our reference number for the Table is still current and correct.

 

[ajk1]

...I meant to say that I am referring to the latest (2016) edition of ASTM C171 standard.

 

[Ingenuity]

ASTM C171 Standard Specification for Sheet Materials for Curing Concrete does not have any tables. It is only 2 pages in length.

I checked my copies from 2016, 2007, 2004 and 1997 - there is no Table 1, or any tables in the document.

The standard only covers (excuse the pun!): Curing Paper, Polyethylene Film and White-Burlap-Polyethylene Sheet.

 

[ajk1]

To Ingenuity:

I love your pun!. A friend of mine is really into puns. He makes them up, sometimes he comes up with a good pun, but not too often.
Thank you for the information. It looks like we have the wrong reference in our spec. I will have to look into it. Thanks again. Much appreciated.

 

[ajk1]

What would be the proper way to specify the type of concrete plastic curing blanket that is not as slippery as polyethylene sheet for workers and what are the names of 2 or 3 companies that make this. Also, what is the Standard (ASTM C171?)that should be specified that deals with this? This type of curing blanket is re-usable on successive concrete pours. Our old spec said "Hydrasorb" by Firstline Building Products but I cannot fine this on the internet.

 

[epoxybot]

ajk1 - I'm not sure the mythical beast you are looking for exists.
There are laminated fiber reinforced craft papers that would be more slip resistant.
Companies are:
Fortefiber
Holland Manufacturing
Gordon Paper

And then there are products like "Burlene"(TM) & "Curelap"(TM), but with each of these the poly side faces up.

If you had an area that you want to give some added protect because of heavy traffic then you could look at "Ram-Board"(TM)

To what extent any of the manufacturers have test data to support the water retention properties is questionable.

 

[Ingenuity]

My field experience with curing blankets has been with two products - POLYBUR by Eagle Industries Link and the second is TRANSGUARD 4000 by Reef Industries Link.

Transguard 4000 is a way superior product - many times reusable and exceptionally durable. I have used and re-used our blankets over a 10 year period. The PolyBur breaks down easily, and the burlap and poly sheet separate after the second or third reuse.

Transguard is more than twice the price of other covers.

Transguard and PolyBur both reference conformance to specification ASTM C171.

I have attached the product data sheet for Transguard 4000.

 

[ajk1]

To Epoxybot and Ingenuity:

Thank you both for the information. I suppose the next step for me is to check with a couple of the building materials suppliers in my area (Toronto) see if they stock or can supply any of these products.