mortar mix for rock

[pufferpoo]

I used Sacrete mortar/stucco mix to make some rock. I was looking at their site and found this info. Can I still use it if it is cured? I dont have a clue about the stuff that is in it.

This product consists of a heterogeneous mixture of hydraulic cement and sand. The major compounds are:
3CaO•SiO2 Tricalcium Silicate CAS #12168-85-3
2CaO•SiO2 Dicalcium Silicate CAS #10034-77-2
3CaO•Al2O3 Tricalcium Aluminate CAS #12042-78-3
4CaO•Al2O3•Fe2O3 Tetracalcium aluminoferrite CAS #12068-35-8
CaSO4•2H2O Calcium Sulfate dihydrate(Gypsum) CAS #7778-18-9
(CAS #13397-24-5)
SiO2 Silica Sand CAS #14808-60-7

Hazardous ingredients:
Hydraulic Cement
5 mg respirable dust/m3
15 mg total dust/m3
10 mg total dust/m3
weight 19 - 25

Calcium sulfate (CAS #7778-18-9) [Gypsum (CAS #13397-24-5)]
5 mg respirable dust/m3
15 mg total dust/m3
10 mg total dust/m3
weight 0.5 -2.0

Iron oxide (CAS #1309-37-1)
10 mg/m3
5 mg/m3
weight 0.1 - 2.0

Calcium carbonate (CAS #1317-65-3)
5 mg respirable dust/m3
15 mg total dust/m3
10 mg total dust/m3
weight 0.1- 5.0

Magnesium oxide (CAS #1309-48-4)
15 mg total dust/m3
10 mg total dust/m3
weight 0.2-1.0

Calcium oxide (CAS #1306-78-8)
5 mg/m3
2 mg/m3
weight 1.0 -5.0

Crystalline silica (CAS #14808-60-7)
10 mg of respirable dust/m3
% SiO2 + 2
0.5 mg respirable quartz/m3
0.05 mg respirable quartz dust/m3
weight <80

 

[kaskiles]

Hi,

I think you are safe, those look like the typical components of Portland cement. Maybe they have the ratios a little different, and they've added some silica sand instead of calcium based. But I'd think you'll have the same experience as people using the DIY rocks process. Just in case you do not already have this link:
http://reefcentral.com/forums/showthread.php?s=&threadid=807988&perpage=25&pagenumber=1