Roman Cement Sealed Brick Cistern¶

Rainwater & Storage • Est. CapEx: $400 USD • Lifespan: 20 Years (Standardized)

Technical Overview¶

An ancient, durable method for constructing watertight brick cisterns using Roman cement (a natural hydraulic lime mortar) that lasts for centuries. Ideal for off-grid and permaculture homesteads seeking non-concrete, non-plastic storage.

Key Specifications & Engineering Parameters¶

Parameter	Specification
Category	Rainwater & Storage
Capital Cost (CapEx)	$400 USD
Power / Energy	100% Gravity / Zero Power
Target Scale	Community Scale
Standard Lifespan	20 Years (Standardized)
Technology Maturity	Field Tested
Primary Mechanism	Brick or stone walls are built with Roman cement (pozzolanic lime mortar) that sets underwater and creates a waterproof structure. The cistern is often capped with a vaulted brick roof, and the interior may be sealed with additional layers of Roman cement to prevent leakage.

Engineering Trade-Offs¶

✅ Advantages⚠️ Limitations

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Cross-Reference & Interactive Tools¶

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