Chargement…
Chargement…
Cement mortar is the base material for masonry, renders and screeds: a mix of CPJ 45/55 cement, sand and water, dosed between 300 and 500 kg/m³ depending on use. Complete guide: composition, dosage, mortar types, price and delivery. Compliant with Moroccan standards NM 10.1.004 and DTU 20-1 / 21-1 / 23-1.
CPJ 45/55 cement ground in Dakhla, controlled quarry sand
Dosage per NM 10.1.004 and DTU 20-1 / 21-1 / 23-1
Possible admixtures: plasticizer, water-repellent, retarder
Mixer truck, big bag, pre-dosed bags, silo bulk
Cement mortar is used in all construction stages, from load-bearing masonry to finishing.
Block, brick, parpaing laying, tie beams, lintels.
Exterior and interior renders, plasters, floated finishes.
Finishing screeds, fills, industrial screeds.
Concrete repair, reprofiling, element sealing.
The cement dosage determines the strength, durability and workability of the mortar. Follow DTU recommendations.
| Use | Cement dosage | Volume ratio |
|---|---|---|
| Setting mortar (blocks, bricks) | 250-300 kg/m³ | 1 vol. cement for 5 vol. sand |
| Jointing mortar | 300-350 kg/m³ | 1 vol. cement for 4 vol. sand |
| Facade render (1 or 2 coats) | 350-400 kg/m³ | 1 vol. cement for 3-4 vol. sand |
| Finishing screed (4-5 cm) | 300-350 kg/m³ | 1 vol. cement for 4 vol. sand |
| Industrial screed / fill | 400-450 kg/m³ | 1 vol. cement for 3 vol. sand |
| Structural repair mortar | 450-500 kg/m³ | 1 vol. cement for 2-2.5 vol. sand |
Cement mortar is a fundamental building material composed of cement, sand and water, sometimes complemented by lime (bastard mortar) or admixtures. Unlike concrete, it contains no gravel: it is used to assemble elements (masonry), to coat surfaces (facade, interior) or to form finishing screeds. The cement dosage — expressed in kilograms of cement per cubic meter of dry sand — directly determines the strength, durability and workability of the mortar.
A cement mortar consists of three main ingredients: (1) cement — usually CPJ 45 for standard masonry and screeds, or CPJ 55 for high-strength mortars and structural repairs; (2) quarry sand 0/2 to 0/4 mm, clean, washed and crushed, free of clay fines; (3) drinking water or water compliant with NM 10.1.005 standard. For certain applications (old renders, stone masonry), hydraulic lime (CL or NHL) is added to improve the plasticity and breathability of the mortar: this is bastard mortar. Admixtures can be incorporated: plasticizer (reduces water), water-repellent (waterproofing), setting retarder (large surfaces), accelerator (cold weather), fiber (anti-cracking).
Mortar dosage is governed by Moroccan standards and DTU (Documents Techniques Unifiés) French standards applicable in Morocco: DTU 20-1 (masonry), DTU 21 (concrete), DTU 23-1 (walls), DTU 26-1 (renders). For a block-laying mortar, 250-300 kg/m³ is sufficient. For a quality facade render, aim for 350-400 kg/m³ in two coats (dash coat + finishing coat). For a finishing screed on a concrete slab, 300-350 kg/m³ ensures good abrasion resistance without excessive shrinkage. Structural repair mortars (column reprofiling, sealing) rise to 450-500 kg/m³ with possible fiber addition. An overdosage of cement (beyond 500-600 kg/m³) causes excessive shrinkage and cracks; an underdosage (under 250 kg/m³) gives a dusty, weak and non-durable mortar.
The price of a cement mortar breaks down into: cement (CPJ 45 at tarif sur devis, CPJ 55 at tarif sur devis — see our cement price page), 0/4 sand (80-120 DH/T at quarry, 150-200 DH/T delivered to site) and water (generally negligible). For a 350 kg/m³ CPJ 45 mortar, expect about 750-850 DH/m³ of mixed mortar. Pre-dosed dry mortar in bags (25-40 kg, Render or Screed type) costs 4-6 DH/kg. Ready-mix mortar delivered by mixer truck costs 900-1,100 DH/m³ for volumes over 5 m³. Request a free quote for a precise rate according to your site.
A cement mortar consists of three basic ingredients: cement (CPJ 45 or CPJ 55), sand (0/2 to 0/4 mm) and water. For a bastard mortar, lime is added. The standard dosage for masonry is 350 kg of cement per 1 m³ of sand (i.e. 1 volume of cement for 3 to 4 volumes of sand). The water quantity is adjusted to achieve the desired consistency (workable for masonry, more fluid for render).
For a finishing screed (4-5 cm thickness on concrete slab), the recommended dosage is 300 to 350 kg of cement per m³ of dry sand (so-called "300-350 kg/m³" dosage). For industrial screeds or heavily loaded fill, increase to 400-450 kg/m³. Too low a dosage (under 250 kg/m³) gives a dusty and non-durable screed; too high (over 500 kg/m³) causes excessive shrinkage and cracking. Always use 0/4 crushed and washed sand.
Mortar is a cement + sand + water mix (no gravel) used for masonry, render and screeds. Concrete adds gravels (aggregates > 5 mm) for structural strength (beams, slabs, foundations). Tile adhesive mortar, or tile glue, is a mortar formulated with admixtures (water repellents, resins) to bond tiles and faience — see our dedicated tile adhesive page. For your structural reinforced concrete works, see our CPJ 45 and CPJ 55 cements.
The price of cement mortar depends on dosage and constituents. For a 350 kg/m³ CPJ 45 cement mortar, expect about 750-850 DH/m³ of ready-to-mix mortar (cement + sand + water, excluding labor). 0/4 sand costs 80-120 DH/T, CPJ 45 cement tarif sur devis. For pre-dosed dry industrial mortar in bags (Render/Screed type), plan for 4-6 DH/kg. Request a free quote for a personalized rate according to your project.
Yes, for medium and large sites, mortar can be delivered ready-to-mix by mixer truck (DAM batching plant) with possible pumping to the application point. For small sites, we offer pre-dosed dry mortar in 25-40 kg bags (just add water) or 50 kg cement bags with sand delivered separately. The choice depends on volume, accessibility and lead time. Contact us for a tailored solution.
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