Exposed aggregate pavers beautify Ashton, Cogmanskloof and Montagu Roads in South Africa

Brownstone coarse-exposed aggregate pavers, supplied by Concrete Manufacturers Association member, C.E.L. Paving Products, have formed part of the rehabilitation of Trunk Road 31, a 13.4km pass which cuts through Cogmanskloof situated between Ashton and Montagu on the Western Cape’s renowned R62 route between Oudtshoorn and Robertson. In addition, the pavers were used to resurface extensive sections of sidewalks along the main thoroughfares in Ashton and Cogmanskloof pass.

C.E.L. also supplied its 80mm Terracotta interlocking pavers for the construction of four raised intersections on Ashton’s main road.

The project was undertaken and funded by the Western Cape Department of Transport and Public Works to improve traffic and pedestrian safety and to enhance the flood capacities of the bridges along the route.

H&I Civil Engineering (Pty) Ltd was appointed as principal contractor of the project which commenced at the beginning of March 2019 and reached completion in May 2022.It involved resurfacing Trunk Road 31 which skirts the scenic Cogmanskloof River, and included various ancillary works such as the construction of sidewalks and rest areas on some sections of the pass road.


15 000m² of exposed aggregate pavers

Furthermore, the project involved the erection of three new bridges, two of them straddling the trunk road, and the other, the iconic cable-tied arch bridge, spanning the Cogmanskloof River in Ashton. The old bridge had been repeatedly damaged by flooding and silting and no longer fulfilled its functional purpose. The new bridge accommodates four lanes of traffic and is flanked on either side by sidewalks surfaced with C.E.L.’s exposed aggregate paving.

Approximately 15 000m² of the exposed aggregate pavers were used in Ashton and Cogmanskloof along Trunk Road 31. Additionally, 3 700m² of the Terracotta 80mm interlocking pavers were laid to seal the four raised intersections on Ashton’s main road. The interlockers rest on a 300mm cement-stabilised sub-base topped with a 150mm G1 sub-base course, and a 20mm layer of bedding sand.

Consulting engineers, AECOM SA (Pty) Ltd, were responsible for the design and project management elements of the overall project. As the principal contractor, H&I Civil Engineering was responsible for the project’s entire construction program. The physical paving work was undertaken by three sub-contractors: Hydro Cape Turf surfaces, Suku Nikizela and Zimele Civils and Plant Hire. All the unskilled labour for the paving work was sourced locally in Ashton and Montagu as was Hydro’s skilled labour component.

H&I’s Civil Engineer responsible for the project’s Emerging Contractor Development program, Yamkela Hlehliso, said that he was very happy with the quality of pavers supplied by C.E.L.

“The exposed aggregate pavers look like natural stone and blend perfectly with the folded sandstone crags and rock facing features of Cogmanskloof,” said Hlehliso.


C.E.L. Paving Products

13 Sysen St, Blackheath

Cape Town, 7581/South Africa

+ 27 21 905 5998



Related articles:

Issue 07/2016

Low-noise concrete block paving

For pavement construction, the current situation is such that a correction value of + 3 to + 6?dB(A) has been assigned to the now outdated RLS-90 directive for noise protection on roads. In comparison...

Issue 02/2019

New concrete paving plant for TriCircle Pavers in Bartow/Florida

The Florida market and indeed many parts of the US are dominated by customers seeking individual solutions: “Please give me something my neighbors haven’t got” - seems to be the trend. This leads...

Issue 10/2009 Paving blocks and street furniture

Precast products made of recycled concrete

A concrete was envisaged that would allow for recycled aggregates as an input material, rather than just an additive or material put into the process at a later stage. The project generally aimed to...

Issue 08/2009 Portland tries permeable interlocking concrete street pavements

Sustainability with paving blocks

Portland, Oregon, (population 551,000) endeavors to maintain its reputation as an environmentally friendly and innovative city. In 2004, the city government confirmed its commitment to both by...

Issue 10/2014 Aveng Manufacturing Infraset

Architects plumb for permeable paving system

Permeable interlocking concrete paving (PICP) is a prominent landscaping feature at Alchemy Architects’ new office premises in Edenvale, Johannesburg. Completed in December 2013, the modern...