General-catalogue
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GENERAL CATALOGUE LIGHTWEIGHT EXPANDED CLAY AGGREGATES, BAGGED PREMIXED CONCRETES AND MORTARS

Our company Laterlite is an Italian company that manufactures and develops lightweight insulating products for construction, civil engineering, geotechnical engineering, industrial uses, agriculture, and landscaping. Our company history began in 1964 when we first introduced lightweight expanded clay aggregates into Italy. Today we have four Italian manufacturing plants, main offices in M ilan, and a network that covers all of Italy. Later on during the 1990s we expanded internationally; we now have a structured presence in France, Switzerland, and Spain and we export to more than 20...

Our products Laterlite Expanded Clay The core component of Laterlite products is expanded clay, a lightweight aggregate that has a cellular structure enclosed within a hard, strong ceramic “clinkered” outer shell that optimises the weight-to-strength relationship and gives outstanding thermal insulation characteristics. Expanded clay is inalterable, recyclable, re-usable, durable, contains no organic materials, and is resistant to fire. It is a sustainable, ecological product of natural origin that is certified for use in sustainable construction. Laterlite can manufacture expanded clay...

LIGHTWEIGHT AGGREGATES Incombustible LIGHTWEIGHT, INSULATING, STRONG, NATURAL NON-COMBUSTIBLE AGGREGATE FOR WEIGHT REDUCTION, INSULATION, BACKFILL, DRAINAGE, AND IN LIGHTWEIGHT CONCRETES AND MORTARS, GARDENING, AND AGRICULTURE Laterlite Expanded Clay is a lightweight aggregate made by expanding special natural clays at high temperature (1200°C). It is supplied either as granules in a range of sizes or as a crushed version, with a peculiar set of characteristics. CHARACTERISTICS Lightweight, insulating, strong Its porous internal structure means it is lightweight (from approx. 320 kg/m3),...

LIGHTWEIGHT AGGREGATES - LATERLITE EXPANDED CLAY TYPES GRANULAR Laterlite Expanded Clay in granular form optimises the relationship between weight, lightness, and insulating ability. The characteristic spherical granules come in a wide range of sizes (denominations 0/2 – 2/3 – 3/8 – 8/20). Laterlite Expanded Clay can also be supplied in crushed form, in a range of sizes (denominations 0/2 FRT, 0/4 FRT and 2/4 FRT) suitable for use as a component in some lightweight concrete (e.g. for lightweight blocks and refractory products) and wherever there is a need for a lightweight fine material...

LIGHTWEIGHT AGGREGATES - LATERLITE EXPANDED CLAY PRINCIPAL METHODS OF APPLICATION: GRANULAR PRODUCT The bearing layer must be clean, solid, stable, free of cracks, discontinuities or loose parts. Any services previously laid on the bearing layer must be adequately protected and distanced. If the product is to be spread on the ground, a separating layer (e.g. geotextile) must first be laid. APPLICATION METHODS 1 - Loose application In order to exploit to the full the insulating and lightness characteristics of Laterlite Expanded Clay, the material should be laid loose and simply levelled to...

LIGHTWEIGHT AGGREGATES - LATERLITE EXPANDED CLAY Other binders Other types of binder, such as hydraulic lime and resins, can also be used with Laterlite Expanded Clay. In some situations it may be necessary to use the hydrophobic version of Laterlite Plus (p. 10). For further information, consult Technical Support. LAYING WATERPROOFING AND PAVING: LEVELLING/COVER SCREEDS If paving or waterproofing is to be laid on top of loose Laterlite Expanded Clay whose surface has been consolidated with slurry or that has been bound with cement, a top screed is required to level the surface and...

LIGHTWEIGHT AGGREGATES - LATERLITE EXPANDED CLAY PRINCIPAL APPLICATIONS Flat and sloping roofs When used on a roof Laterlite Expanded Clay ensures that the necessary degree of insulation combined with high thermal inertia - the two indispensable requirements for comfortable winter and summer habitation - will be met. Because it is a lightweight material it can be laid to a considerable thickness without excessively loading the structure. In its loose form, after it has been consolidated on its top surface, or has been bound with cement, it can be used as an insulation layer that can...

LIGHTWEIGHT AGGREGATES - LATERLITE EXPANDED CLAY Roof voids Laterlite Expanded Clay can be used in roof voids as a durable insulating layer of high compressive strength that is impenetrable to rodents or birds. Its very good thermal inertia makes it particularly effective as insulation that reduces summer overheating. If the roof void is not walkable the product can be laid loose (or in bags placed directly on the floor). If the roof void is to be accessible, the surface can be slurried or covered with wood-cement slabs; if it is to be walkable the product can be mixed with cement and...

LIGHTWEIGHT AGGREGATES Incombustible A SPECIAL, DRY, HYDROPHOBIC, INSULATING, EXPANDED CLAY LIGHTWEIGHT AGGREGATE FOR USE IN DRY CONSTRUCTION SYSTEMS, AS INSULATING BACKFILL, FOR INSULATION IN FOUNDATIONS AND EARTH RETAINING WALLS, AND IN LIGHTWEIGHT LIME/CEMENT CONCRETES Laterlite Plus is a lightweight expanded clay aggregate of very low capillarity that is manufactured by expanding special natural clays at high temperature (1200°C). It is supplied either as granules in a range of sizes or, by request, as a crushed version, with a peculiar set of characteristics. Porous internal structure...

LIGHTWEIGHT AGGREGATES - LATERLITE PLUS PRINCIPAL APPLICATIONS DRY USE Dry screeds Laterlite Plus 2/3 in granular form is used as a continuous lightweight levelling, compensating, and insulating screed. It does not require compaction and can be applied in thicknesses of 1 cm and above. When used as part of a screeding system it can be finished by laying specific types of panelling (SmartPly OSB, plasterboard, fibreboard, chipboard, etc..) to take the flooring. Lightweight insulating backfill Laterlite Plus Expanded Clay in granular form of 3/8 size can be used as insulating backfill between...