Concrete arrives stiff well before planned placement.
Use the site evidence to agree a project-specific method with the responsible engineer, concrete producer, manufacturer or specialist applicator.
Concrete arrives stiff well before planned placement.
Record time, temperature, initial and arrival slump, admixture dosage and site water additions.
Cement-admixture compatibility, heat and long transit may accelerate loss of workability.
Trial an approved mix with the producer; adjust admixture type or dosing sequence within design limits.
Control batching, transport time and water addition under the approved quality plan.
Compare slump retention, set and strength across trial and production batches.
Do not add uncontrolled water on site to recover slump.
References inform the topic; they do not endorse a specific product for this project.