# Concrete Shrinkage Calculator AI Agent Connect

> Predict concrete shrinkage strain, physical deformation, and optimal joint spacing using the ACI 209 model.

## Overview
- **Category:** construction
- **Price:** Free
- **Endpoint:** https://edge.vinkius.com/vk_preview_hHKFc4ZZAWnDoAqRRUQKZeK2JdF1aoY956bftuZH/ai-agent-connect
- **Tags:** concrete, aci-209, shrinkage, structural-engineering, civil-engineering

## Description

This MCP server provides structural engineering tools to predict concrete shrinkage behavior. It uses the ACI 209 model to calculate shrinkage strain based on environmental factors like humidity and material properties like cement and aggregate types. Engineers can use `get_shrinkage_strain` to find the strain value, `get_deformation_mm` to calculate physical length changes, and `get_recommended_joint_spacing` to determine the best distance between control joints to prevent cracking. It also includes `get_material_properties` for looking up specific shrinkage coefficients.

## Tools

### get_recommended_joint_spacing
Determine optimal distance between joints to prevent shrinkage cracks

### get_deformation_mm
Calculate the physical change in length (deformation) of a concrete member

### get_material_properties
Retrieve standardized shrinkage coefficients for specific material combinations

### get_shrinkage_strain
Calculate predicted shrinkage strain based on environmental and material factors

## Prompt Examples

**Prompt:** 
```
Calculate the shrinkage strain for concrete that is 28 days old, in 50% humidity, with a thickness of 200mm, using Standard cement and Fine aggregate.
```

**Response:** 
```
The predicted shrinkage strain is 0.00045.
```

**Prompt:** 
```
What is the recommended joint spacing for a concrete member with a shrinkage strain of 0.0005, a thickness of 150mm, and a compressive strength of 30 MPa?
```

**Response:** 
```
The maximum recommended joint spacing is 3500 mm, with a Low risk level.
```

**Prompt:** 
```
How much will a 5000mm long concrete beam deform if the shrinkage strain is 0.0004 and the restraint factor is 0.3?
```

**Response:** 
```
The total deformation is 2.0 mm, and the restrained deformation is 1.4 mm.
```

## Frequently Asked Questions

**What model is used for these calculations?**
The server uses the ACI 209 shrinkage prediction model to calculate strain and deformation.

**How do I calculate the physical deformation in millimeters?**
You can use the `get_deformation_mm` tool by providing the calculated shrinkage strain and the total length of the concrete member.

**Can I account for reinforcement restraint?**
Yes, the `get_deformation_mm` tool accepts an optional restraint factor to account for internal reinforcement.