Tag Archives: Lime Mortar

Repairs to Medieval Wall

Summary = Repair to flint and stone masonry of a medieval wall at St John's Abbey Gate in Colchester

Value = Approximately £30,000

Location = Colchester, Essex

Challenge = Bakers was asked to repair a hole in the wall, but when Bakers started to remove loose masonry it became apparent that further repair work was necessary to stabilise the wall.

Solution = Investigations were carried out into the foundations, and it was found that they were suitable, so Bakers could continue with the conservation and repair works. Colchester Archaeological Trust were involved in the investigations.

Bakers carried out repairs to the collapsed section of the medieval masonry wall which formed part of the boundary to St John’s Abbey Gate in Colchester. The medieval masonry wall consists of various kent rag stone, flint, clunch and re-used masonry from the abbey with lime mortar.

All stone was salvaged, but where necessary Bakers had to source reclaimed stone to match the existing. Loose mortar was raked out, before being pointed with the new lime mortar which matched the existing. The new mortar used had been matched closely with the original mortar colour and was approved by the client.

Restoration of Oldest Church Remains

Summary = Restoration of apsidal remains, said to be the oldest church in Britain.

Location = Colchester, Essex

Challenge = The weather was causing erosion to the original core structure of the walls.

Solution = Restoration works have recently been carried out by Bakers of Danbury Ltd, to the remaining stonework belonging to what is said to be the oldest Christian Church in England.

The remains of the Church next to Colchester Police Station in Essex, are believed to date back to 320 A.D, toward the end of the Roman occupation in Britain. Originally excavated more than 40 years ago, the apsidal remains consist of septarian stone together with reclaimed roman tiles and pamments.

Commissioned by Colchester Borough Council and supported by Colchester Archaeological Trust, Bakers of Danbury’s stonemasons repointed the stone wall foundations with Lime Mortar and restored all visible stonework, using traditional methods which have been handed down generations of the 140-year-old company. Despite the starkness of the pointing against the older, dirtier masonry, Bakers' stonemasons matched the original core mortar as closely as possible.

The recent restoration works will protect the remains for many years to come, by preventing further erosion which can occur when the weather gets into the original core structure of the walls. All oak marker posts which mark the positions of the aisles and partition have been replaced with new.

Philip Wise, Colchester & Ipswich Museums said;

“These works will help to safeguard the future of these important Roman remains for the people of Colchester.”

Although Colchester Archaeological Trust agree the ruins are a “probable Romano-British Church”, the building was associated with two cemeteries one pagan and one Christian, which help support alternative theories around the buildings original use - perhaps later being converted to a Romano-British Church. These theories suggest it may have been originally been a pagan temple, a Roman mithraeum (Roman temple) or a hall for funerary feasts predating AD.320. The remains were awarded Scheduled Monument status by Historic England on 07 October 2020, ref 1470104. For more information visit historicengland.co.uk

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