We recommend that you read the brochure on the impregnation of brick products, prepared by one of the best
and the most experienced ceramic technologists in the country, Eng. Richard Belak. Please remember that you do hydrophobization at your own risk, as it is not recommended on our part.
What you must see about bricklaying facade wallsCONDITIONS:
The basic condition for the use of any hydrophobic preparations in brick facade walls is
– No soluble salts in the components of the masonry mortar, in mixing water and in brick, – Securing walls with insulation against moisture from rising groundwater and against rainfall – Covering dried walls with hydrophobic preparations, – Application of a properly selected concentration of a water-dilutable hydrophobic preparation.
OBSTACLES:
– Bad quality of the preparations used, which often undergo phase separation, – Inappropriate concentration causing excessive migration into the ceramic bodies. – Inadequate adhesion of organosilicon compounds, – Insufficient formation of the molecular coating of organosilicon compounds, the so-called cross-linking in brick pores (hardening),
– Damp, not dried facade walls.
CONCLUSIONS:
– Improperly carried out hydrophobization causes the shifting of the ice crystallization zone or the crystallization of water-soluble salts under the surface of the impregnated face layer of brick, through which it is impossible to evaporate water. – The hydrophobic coating insufficiently protecting the substrate against water penetration, e.g. due to the non-formation of a molecular hydrophobic coating or due to mechanical damage to the brick surface (scratches, cracks) as well as brick not cleaned of dust and dust, contributes to the formation of an increased process of physical damage to the brick manifesting itself flaking of the face layer of the brick. – Due to their chemical composition, hydrophobic agents react with the compounds contained in the impregnated brick or tile and form a polysiloxane gel in the surface layers, through which it is impossible to evaporate water. – Before impregnation, check the effectiveness of the horizontal insulation and protection of the wall against damping due to precipitation, – It is recommended to apply hydrophobic preparations in the wet on wet system twice on the cleaned surface of bricks. NOTE: The most effective and safe agents for hydrophobization of facing bricks are water-dilutable preparations in concentrations adjusted to the absorption of bricks.
IRREGULARITIES CAUSED WHEN Erecting FACADE WALLS
Incorrectly selected concentration of the hydrophobic agent and application to the damp wall of the pillar causes flaking
Bricklaying of the façade wall with a deep joint causes rapid atmospheric destruction and the appearance of air raids and efflorescence.
Unfilled joints cause destruction of the wall as a result of cyclic freezing and thawing
WHY CERAMIC BRICK?0 WHAT YOU NEED TO REMEMBER!STRENGTH AND DURABILITY
The compressive strength of ceramic products is very high, from 5 to 30 Mpa, and in the case of clinker products from 35 to 60 Mpa. The durability of bricks is counted in dozens or even hundreds of years. Bricks can be used to design and build a house that will last and last for many generations.
SECURITY
A safe house is one where there are no threats to health and life. Bricks do not contain and do not emit harmful compounds or substances to the environment. The emission level of radioactive compounds is similar to the natural radioactivity of wood. The fire resistance of walls made of ceramic products is very high.
LIVING COMFORT
The level of home and apartment comfort is determined by the thermal and humidity parameters, good acoustic insulation, efficient ventilation and the external aesthetics of the entire building. In brick houses, we deal with a constant microclimate that is favorable for humans. A house made of facade bricks has high aesthetic values, you can easily shape the original architectural forms of the house, its interior and facade, as well as the surroundings.
LOW OPERATING COST
Due to the materials used, the most important elements of house operating costs are heating costs and maintenance costs. A house in which walls, facades, roofing, floors and, in part, wall coverings are made of ceramic materials, requires virtually no maintenance for many years. The more ceramics, the lower the cost of home maintenance
The utility values of bricks are unquestionable, so you should build red ceramics, preferably bricks.
ABOUT THE CHOICE OF THE MORTAR:
– After setting, it is resistant to adverse weather conditions, including heavy rain and frost
– It has high adhesion on the contact surface of the mortar with the brick
– It has the properties of regulated water retention, which prevents “burning” of the mortar and excessive outflow of mixing water
– It has a minimized risk of efflorescence through the selection of appropriate fractions of aggregate and binders (cement, lime) that do not contain water-soluble salts, e.g. with the use of trass
– Does not stain the facing surfaces of bricks with grout
– The excess of squeezed mortar from between the bricks does not detach,
– It is characterized by high compressive strength thanks to the use of aggregates with selected granulation
– It is easy to prepare and use.
– When preparing the mineral masonry mortar, it is absolutely necessary (!) To observe the constancy of the composition of the mixture components.
BRICK AND FACADE TILE:
– Order bricks in the same production lots
– Exactly calculate the quantity of the ordered face brick and order 10% more than the calculated quantity.
– Before bricklaying, check the quality of the purchased products.
– Protect the ceramic material delivered to the construction site against damage, destruction and precipitation – place the pallets on a hardened area, protected against moisture penetration.
– Properly organize the workplace, (cleanliness of the surroundings).
– Use the right tools, accurately measure the need for building materials
– When placing a wall, select bricks from the entire batch delivered to the construction site – collect products from several pallets at the same time.
– Do not use any chemical additives yourself!
– Brick carefully and cleanly!
– Make the facade walls in two stages: bricklaying – pointing
– Protect the erected wall against weather conditions, especially rainfall, dirt and damage.
– Do not brick in rain and frost.
JOINING:
– Facade grouting can be started after min. 14 days from the completion of the entire facade
– The joints should be mechanically cleaned of the remains of masonry mortar and other contaminants, and then it is good to clean them with compressed air.
– Grouting is performed from the top to the bottom of the facade, starting with the horizontal joint and ending with the vertical joints of the given layer.
– Making a vertical joint consists in pressing a mortar lying on the hand or on a V-shaped sheet bent into the joint with the use of short joints.
– It is recommended to make joints flush with bricks or slightly concave – convex joints are not recommended – they are more difficult to make and absorb water more, causing the wall to soak up with it, thus increasing the risk of efflorescence and causing faster destruction of the wall.
– After grouting a wall fragment, clean it dry (!) With a soft brush.
– Always clean the facade from top to bottom.
Caution:
Free-standing walls – fences must have (1):
– Durable anti-moisture insulation to protect against rising groundwater,
– Tight, protected wall crowns against intensive penetration of rainwater.
If necessary, in justified cases, it is allowed to use admixtures, agents and additives to the mortar. plasticizing or accelerating its binding. All admixtures should be used in accordance with the manufacturer’s instructions.