CONCRETE TRENDS 2021 ISSUE 2

Page 31

Admixture trends

Preparing for precast – mix designs on Sika

T

he concrete concept drives a precast concrete element production process and has essential impact on process timing. Concrete production, installation and curing must therefore be kept as short as possible. This has consequences regarding concrete technology. Requirements influencing precast concrete production are excellence of concrete surface appearance, high compressive strength and high durability. The production steps of batching and mixing, transport, compaction and finishing must also be considered within a concrete concept. With advanced concrete technology and suitable admixture application, adequate workability, rapid installation and subsequent fast strength development of the concrete can be ensured whereas fast strength development is critical for swift production. Application of innovative concrete mix designs such as Self Compacting Concrete (SCC) offer further advantages.

Solutions for wet precast concrete

Find our branches at www.technicrete.co.za

p a v i n g | m in i n g | m as o n r y | k erb s | erosion

SUITABLE FOR: • Car parks • Industrial Estates • Retail Centres • Pedestrian areas • Domestic Drives • Motorways | Garages • Service areas

protecti

on | r e ta in

APPLICATIONS: • Tongue & groove • Standard grey or traffic calming colours • Precast • Various sizes available • Highest quality

ing w a ll s

| dra i n ag e

Technicrete is a subsidiary of ISG, a leading supplier of innovative infrastructure products to the construction and mining markets in Southern Africa.


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