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I m looking for a chemical formulation for expansive grout…

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I m looking for a...
I m looking for a chemical formulation for expansive grout for rock demolition
Submitted: 7 months ago.Category: Home Improvement
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Answered in 4 days by:
10/3/2017
Home Improvement Expert: Matt, Engineer replied 7 months ago
Matt
Matt, Engineer
Category: Home Improvement
Satisfied Customers: 23,082
Experience: Mechanical Engineering Hons degree, been working in automotive industry for the last 18 years - Engine development engineer
Verified

Traditionally to split a large rock you would hammer in wood splinters to an existing crack and then soak the wood in water

the splinters swell up and this cracks the rock

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Customer reply replied 7 months ago
That was not what I was looking for. I am looking for a chemical formulation to make a cementious grout to cracking rocks and concrete slabs.
Home Improvement Expert: Matt, Engineer replied 7 months ago

Ok

I'll opt out good luck

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Home Improvement Expert: Phil, Mechanical Engineer replied 7 months ago
Phil
Phil, Mechanical Engineer
Category: Home Improvement
Satisfied Customers: 9,390
Experience: Retired contractor, 51 years experience
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This is not an answer.

All 'grouts' harden and stick to the rock... so you do not want a grout.. Mother nature uses water for the purpose, it expands and cracks rock when it freezes and gets into the tinniest fissures. that works very well, it takes many freeze /thaw cycles though.

"Hydraulic cement' expands to fill any crack that it is poured into, but not with enough force to split a rock...it also adheres to the rock.

Good luck with your project

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