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AMPP Senior Internal Corrosion Technologist Exam - Topic 3 Question 7 Discussion

Which surface preparation method uses a dilute add solution to remove laitance and roughen the concrete surface?
B) Add etching
A) Sacking
C) Stoning
D) High-pressure water washing

AMPP Senior Internal Corrosion Technologist Exam - Topic 3 Question 7 Discussion

Actual exam question for AMPP's Senior Internal Corrosion Technologist exam
Question #: 7
Topic #: 3
[All Senior Internal Corrosion Technologist Questions]

Which surface preparation method uses a dilute add solution to remove laitance and roughen the concrete surface?

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Suggested Answer: B

by Tresa at Jul 17, 2026, 05:50 AM

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Providencia
10 days ago
I’m not sure, but I lean towards D) High-pressure water washing. It cleans well.
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Kassandra
15 days ago
I agree, B) Add etching makes sense. It’s effective.
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Chaya
20 days ago
I think it's B) Add etching. Seems right.
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Janey
25 days ago
Yep, B) Add etching is the right one!
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Barney
1 month ago
Wait, are we sure it's not C) Stoning?
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Erick
1 month ago
High-pressure water washing is for cleaning, not etching!
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Patrick
1 month ago
I thought it was A) Sacking.
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Veronika
2 months ago
Definitely B) Add etching!
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Asha
2 months ago
I practiced a question similar to this, and I think it was about B) Add etching. It makes sense for removing laitance.
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Rikki
2 months ago
I’m leaning towards D) High-pressure water washing, but I remember something about using a solution to etch the surface too.
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Angelica
2 months ago
I remember discussing surface prep methods, and I feel like A) Sacking was mentioned, but I can't recall the details.
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Pauline
2 months ago
I think the answer might be B) Add etching, but I'm not completely sure. It sounds familiar from our last practice session.
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