Masonry mortar is a critical construction material used to bind together masonry units such as bricks, blocks, and stones. It is also used to fill the gaps between various building materials, improving the insulation, waterproofing, and soundproofing properties of the building.
LANDERCOLL is a dedicated manufacturer of Cellulose Ether, an effective additive derived from cellulose widely used in the construction field. Our additives such as HPMC(Hydroxypropyl Methyl Cellulose) and Hydroxyethyl Methyl Cellulose(HEMC) enhance water control ability, bonding strength, and workability for various masonry mortar formulas.
Typically applied in thicker layers, usually ranging from 10 mm to 20 mm or more.
Designed for application in much thinner layers, generally between 1 mm and 3 mm.
Reduce the overall density of the mortar (typically below 1300 kg/m³).
HPMC and HEMC significantly enhance the water retention capacity of masonry mortar. Proper hydration is essential for achieving strong bonds and reducing the likelihood of cracks and delamination.
The presence of HPMC and HEMC can form a hydrophobic film as a barrier against water penetration, preventing liquid water from reaching soluble salts within the mortar. This helps reduce the potential for efflorescence formation.
LANDERCOLL Cellulose ether enhances the adhesion of masonry mortars, reducing the likelihood of delamination or separation between layers, which can lead to spalling when moisture penetrates through cracks or weak points.
The incorporation of HPMC and HEMC increases the flexibility of the mortar, allowing the mortar to better accommodate thermal expansion and contraction without cracking.
Klassen |
NDJ Viskosität 2% |
Brookfield-Viskosität 1% oder 2% |
Feuchtigkeitsgehalt |
pH Value |
Aschegehalt |
TDS herunterladen |
|---|---|---|---|---|---|---|
K75 |
75,000 - 80,000 |
35,000 - 40,000 |
≤6％ |
6-8 |
≤5％ |
Herunterladen |
K100 |
85,000 - 110,000 |
45,000 - 60,000 |
≤6％ |
6-8 |
≤5％ |
Herunterladen |
EM80 |
78,000 - 85,000 |
35,000 - 45,000 |
≤6％ |
6-8 |
≤5％ |
Herunterladen |
Quality control is about more than the production line. It also involves designing additives that perform throughout their life cycle. Central to this is the careful analysis and development of our cellulose ether formulas – to help ensure their consistency during the whole operational life.
LANDERCOLL provides a referenced formula of ordinary masonry mortar as follows but only for reference. Please conduct experimental verification before use and adjust the formula based on the actual situation.
Masonry mortar has good workability. It possesses excellent adhesion, creating a durable, stable, and solid overall structure between masonry units. Masonry mortar also features low plastic shrinkage and drying shrinkage, maximizing the dimensional stability of the wall. For lightweight masonry mortar, it meets the requirements for thermal insulation performance and matches the properties of self-insulating materials such as hollow blocks.
The curing time for masonry mortar can vary but typically takes about 24 to 48 hours to set sufficiently for light handling. Full curing may take several weeks, depending on environmental conditions such as temperature and humidity.
Yes, masonry mortar demonstrates resistance to freeze-thaw cycles. According to the technical performance requirements for masonry mortar products, after undergoing 50 freeze-thaw cycles, the strength loss rate should not exceed 25%.
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