Hessian Jute Curing Cloth (Burlap) for Concrete

Hessian curing cloth, also called burlap, is a woven jute fabric that is soaked in water and laid over fresh concrete to keep it moist while the cement hydrates. The Portland Cement Association notes that wet coverings like hessian outperform curing compounds, and the material has its own specification, AASHTO M 182. Across Africa it goes by many names: hessian, burlap, jute sacking, gunny cloth, gunia, goiing, toile de jute, serapilheira and khaysh (خيش).

In hot sun, harmattan winds and low humidity, concrete loses water fast. Once its internal humidity drops to about 80%, hydration stops and the concrete may never reach full strength. That leaves weak surfaces, shrinkage cracks and early corrosion of the reinforcement. Wet hessian prevents this and also cools the concrete, whether it is used on slabs, columns, bridges, pavements or water-retaining structures.

Hessian only works when it stays wet, and most curing failures happen on site, not in the fabric. That is why we supply, install and supervise it as one service. Our crews pre-rinse the cloth, overlap every joint, cover every edge and keep it wet for the full specified period. Every pour is backed by documented QA/QC records.