COMO preparar un MURO DE TIERRA para aplicar ESTUCO, TADELAKT. Cap4/4 Revoque de cal hidraulico.

Introduction

This tutorial provides a step-by-step guide on preparing a mud wall for applying Tadelakt or lime plaster. It covers the process of applying a hydraulic lime mortar that serves as the foundation for a fine lime finish. This guide is based on the final chapter of a series focused on bioconstruction techniques.

Step 1: Prepare the Base Layer

To ensure a successful application of the mortar, start with the following preparations:

1. Check the Wall Condition:

   • Ensure the mud wall is dry and slightly rough to help open the pores for better adhesion.

2. Create a Stable Base:

   • If necessary, apply a stabilizing layer of mud to enhance the wall's strength and texture.

Step 2: Mix the Hydraulic Lime Mortar

The mortar mix is crucial for achieving the desired finish and durability. Follow these steps to prepare it:

1. Gather Materials:

   • Hydraulic lime (powder form)
   • Local pozzolanic sand
   • Chopped straw for flexibility
   • Soap (to control open time and enhance waterproofing)

2. Mix the Ingredients:

   • Combine the hydraulic lime and pozzolanic sand in a suitable mixing container.
   • Add chopped straw to the mixture for added flexibility and to prevent cracks.
   • Incorporate soap into the mix to improve workability and waterproofing.

3. Achieve the Right Consistency:

   • Gradually add water while mixing until you reach a workable consistency that holds together without being too runny.

Step 3: Apply the Mortar

Now that your mortar is prepared, it's time to apply it to the wall:

1. Apply the First Layer:

   • Using a trowel, apply a layer of the hydraulic lime mortar evenly onto the prepared mud wall.
   • Aim for a thickness of approximately 1 to 2 centimeters.

2. Smooth and Finish:

   • Smooth the surface with the trowel to create an even finish.
   • Allow the mortar to set slightly before proceeding to the next step.

3. Cure the Mortar:

   • Keep the applied mortar damp to prevent cracking as it cures.
   • Monitor the drying process and adjust moisture levels as necessary.

Conclusion

In this tutorial, you learned how to prepare a mud wall for Tadelakt or lime plaster by applying a hydraulic lime mortar. Key steps included preparing the wall, mixing the mortar with appropriate materials, and applying it correctly. For further exploration, consider reviewing the previous chapters in the series for a comprehensive understanding of bioconstruction techniques. If you have questions or need clarification, feel free to reach out in the comments section.