# Bentonite

> Bentonite (iPhone/iPad app by Ian Nicoll.)

- Source: https://appshunter.io/ios/app/bentonite/id1671354342 (this page in markdown: same URL + `.md`)
- Developer: [Ian Nicoll](https://appshunter.io/developer/1671354344)
- Category: Business, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 1 MB
- Languages: English
- Released: 2023-02-13
- Data updated: 2026-07-08
- User reviews in markdown: https://appshunter.io/ios/app/bentonite/id1671354342/reviews.md

## What is Bentonite?

This app is targeted to all Tunnel Boring Machine operators around the globe, using in particular the "Pipe Jacking" method, and for the job site management teams.
After you input the required values and press "Calculate", it will show the operator the total amount of bentonite he will use for the drive for lubrication purposes, and at what speed he should be pumping it at as he is advancing the TBM.
Job site management can use it to calculate in advance how much bentonite will be required for the drive/project.


## Version history (last 2 releases)

### 1.1 — 2023-02-17

Updates the "No. of beno bags in mix" input so now accepts decimal values (example 2.5) instead of just whole numbers.

### 1.0 — 2023-02-13

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*