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Quarry aggregates for concrete operations in Tanzania and Sri Lanka
Aggregates for Concrete in Srilanka and Tanzania Customer Case
A Sri Lankan quarry operator produces aggregates used in road base, concrete, highway and asphalt from granite.
This aggregates for concrete plants operator has a original two stage crushing plant which consists of a primary (600×900mm) 24×36”jaw crusher, two secondary (300×1300mm) 12×51” finer jaw crusher with two vibrating screens(3YZS1848).
Case studies on rehabilitation of the TANZAM Highway in Tanzania and Sri Lanka.
For the aggregates supply element, BAM Ritchies carried out pre-tender and post-award site investigations of potential quarry sites along the 150km length of the planned project section. It was the planned intention to develop two quarries to provide all aggregates for the project, one east and one west of Kitonga Gorge to negate the requirement to haul materials over the gorge. The consequential test results confirmed that the available rock was a granite type material that is found throughout Africa.
Quantities and specifications of quarried rock required for the project were:
Crushed rock class CRR with grading CML1.7 0-40mm – 750,000 tonnes
Aggregates for asphalt:
0-4mm grading – 125,000 tonnes
4-9mm grading – 121,000 tonnes
9-15mm grading – 22,000 tonnes.
BAM Ritchies investigated available crushing plant to suit the specific contract needs and investment restraints. The following mobile equipment was sourced, purchased and shipped from the UK to Dar Es Salaam:
Primary crusher x 2:
Liming® 100 x 800 single-toggle jaw
Liming® 1300 Maxtrak cone
Liming® 1000 Maxtrak cone
Powerscreen Chieftain 2100
Powerscreen Warrior 1400.
Initially, a quarry was opened up at Mazombe to service material requirements for the section of the works west of the gorge, followed by development of the second quarry at Ilindi at the eastern side of the gorge. The rock from Mazombe was processed within the quarry while at Ilindi the rock is being primary crushed at the quarry and transported to the new road alignment where it is stockpiled ready for the existing secondary plant from Mazombe, which was moved down on completion of the western section of the road in spring 2010. Rock from Ilindi will be used primarily for basecourse.
All asphalt for the project will be manufactured at Mazombe Quarry and sufficient stockpiles of crushed rock will be left for the tertiary crusher to produce the required aggregates.
To date some 350,000 tonnes have been put through the primary crusher at Mazombe producing over 205,000 tonnes of basecourse and 95,000 tonnes of asphalt and concrete aggregates.
Aggregates for Concrete in Srilanka Solution
According to this Aggregates for Concrete in Srilanka operator’s requirement on fines and aggregate shape, Liming Heavy Industry studies and designs a three stage crushing plant which consists of a primary (900×1200mm) 36×48” jaw crusher, one secondary S51” cone crusher (standard type), and one S51” cone crusher (short head type) in the tertiary section.From this crushing plant, the operator can get a capacity of 240~260tph of aggregate with 0~3/16” (stone dust), 3/16~1/2”, 1/2~3/4” and 3/4~1” sizes.
This Aggregates for Concrete in Srilanka and Tanzania operator contacts with our Liming Heavy Industry(shanghai) Mining company and hope to expand his quarry capacity.
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In order to recommend you the most suitable plant, you are kindly requested to tell us the below information:
1 what kind of stone do you want to crush?
2 what is the material size before crushing?
3 what is the final product size do you want?
4 what is the capacity you want tons per hour?
5 what will you do with the final products?