Struct-Mast Engineers - Repairs to Heritage Buildings

Struct-Mast Engineers - Repairs to Heritage Buildings One of our activity is to undertake major repairs of existing structures. Recently, we are doing ma

Most of heritage buildings constructed in the 19th century has the jack arch that was prevailing in widespread form of floor construction. The jack arch consisted of shallow concrete vaults spanning between steel joists. This composite construction is concealed between mosaic tile flooring and plaster ceilings and it was intentionally exposed with satisfactory aesthetic results. It used IHB rolled

section beams to provide a springing point for the concrete vaults. The jack arch construction in this building, the flange section beam bottom is a fatal flaw. It is the endeavour of Struct-Mast Engineers to restore the glory of the buildings in sustainable manner by examining each element to bring back original glory of the building. Struct-Mast Engineers have repaired heritage buildings with proven track records is poised to begin with the restoration works to be completed both on time and under budget.

To bring glory to the heritage structure is right attitude to successful completion of the work.
19/02/2020

To bring glory to the heritage structure is right attitude to successful completion of the work.

Struct-Mast Engineers use various modern techniques to promote conservation of heritage structures.  We use ferro-cement...
15/07/2018

Struct-Mast Engineers use various modern techniques to promote conservation of heritage structures.
We use ferro-cement method, fibre reinforced plastic material and fibre modified concrete material to replace and restore ornamental and structural elements. For more detail contact us or write to us.
www.structmast.com or [email protected] or call us on 09820291968

30/08/2017

The performance of historic buildings can be affected by many environmental factors, some of which become more apparent as the competence of the fabric deteriorates. Many historic buildings suffer from water ingress when exposed to driving rain conditions. It is important to recognise that leakage can occur not only through flaws in the roof of a building but also through significant thicknesses of solid masonry. Identification of the most appropriate intervention requires an understanding of the way in which water might enter the structure and the assessment of potential repair options. The grouting, nailing with stainless steel pins and creation of band at crack level has helped to curb moisture movement in historic structures without retarding drying rates, but that use of internal plastering also had a very beneficial effect. The accumulation of deposited salt due to moisture movement, peeling and blistering paint interior face and damage to decorative plaster are major factors that augment the leakage. The excess deposition of moisture into masonry wall will affect timber to deteriorate and will augment damage due to insect and fungal growth. The growth of plants and other disfiguring algae and bio-films are likely to flourish and inflict and establish damages. Water vapour diffusion from relatively hotter wet areas to cooler drier areas is augmenting damages to the interiors. Another effect to be understood is Air convection which is the movement of air across air pressure differentials - up into ceilings and attics via the "stack effect" or out through wind-swept building walls. Warm air rises in buildings. A natural air "chimney" drawing air from the lowest levels of the building upwards, increasing moisture movement up from damp areas (crawl spaces and basements) as well as increasing heating costs when heated or conditioned air ultimately escapes to the outdoors. The majority of moisture movement in (or out) of building wall or ceiling cavities occurs at leaks and penetrations such as around electrical receptacles, light switches, lights, plumbing piping, etc.
A judicious assessment and corrective measures will mitigate the damages due to moisture movement.
For more detail contact us on [email protected] or call onus on 91-22-23452248 or cell no. 9820857365

Struct-Mast Engineers is one of the fastest growing and most admired construction company in Mumbai. It has expertise in...
02/05/2017

Struct-Mast Engineers is one of the fastest growing and most admired construction company in Mumbai. It has expertise in executing large and complex major repairs of heritage buildings' projects. We excel in assessing the restoration needed, planning, framing specifications, executing the works and maintaining the structures to achieve durable repairs and complying to statutory rules and regulations including obtaining necessary permissions.
We use innovative methods to uphold the glory of the structures cost effectively.

The heritage buildings and monuments require skillful experience and basic knowledge of ancient ways how the structures ...
11/04/2017

The heritage buildings and monuments require skillful experience and basic knowledge of ancient ways how the structures were built. The restorations are vital because modern life is expecting certain basic facilities to be part of the building structure which had never existed before at the time the structure was built. The craftsmen now available has been trained in different ways and statutory rules and laws will not allow you to alter the structure which is causing change in old but worthy features. Hence, one has to do a tight rope walking to achieve successful repairs of the heritage structures.

Struct-Mast Engineers have employed various techniques to restore such structures to bring back original glory of the structures.

To restore the stone molding has been restored either by developing the stone molding with polymer modified mortar with due addition of fibres, white cements and pigments to match existing colour, shape, geometry and loos of the moldings. In few cases molding were replaced with similar looking glass reinforced concrete or glass reinforced plastic which gave exact replacement of the molding. The skill lies in the detailing of the fixing arrangements. First photograph is as GRC moldings.

The wide cracks appearing in the masonry structures are nailed with "U" pins and grouted monolithic to establish continuity and mitigation of seepage through cracks. Second photograph is of "U" pin and grouting with cement based polymer modified slurry.

Most of the heritage buildings built in early nineteen centuries have jack arch floors. This floor has lost spring action eigher needs to be restored and the same was achieved by us by use of high strength non shrink type of micro-concrete grout placed in location by placing shuttering and grouting it with specially developed micro-concrete pump. Alternatively, the floor slab is dismantled as it is threatening the stability of the floor slab and is recast using deck sheets or use of precast slab replacing jack arch floor. Photograph 3 & 4 shows restoration of spring action.

To provide AC and air ducts, cables, power cables a concept of false floor is getting more popular and has proved very effective. The wall punctures are duly strengthened with lintel beams introduced.

If you need further clarification or need extra details please call on to us on 91-22-23452248 or write to us on [email protected]

Struct-Mast Engineers is an effective and trust worthy service provider for executing Repairs, Alterations and Extension...
20/03/2017

Struct-Mast Engineers is an effective and trust worthy service provider for executing Repairs, Alterations and Extension of Heritage buildings in utmost planned fashions and will manage your projects irrespective of nature and size and complexity under one roof involving allied works to your best satisfaction. Our comprehensive and step-by-step method of planning, scheduling progress of the works and controlling quality checks in the safest manner at your construction projects using innovative ideas are our determinations and our signatures.
Question may arise in our mind why heritage buildings needs to be repaired? The reasons to be ponder over are (a) member of public are instinctively attracted to old buildings and historic areas; (b) The building form part of the familiar and widely cherished local scene; (c) the structure tell us about our history and form a tangible link with the past; (d) the building help to sustain a sense of local distinctiveness for an area that is widely valued; (d) balance life of the building is often of high quality, are pleasing to look at and contribute to an attractive public realm; (e) their retention, repair and adaptation often make good economic sense and can contribute to the regeneration of our urban areas. Hence, it is important to preserve old buildings both for the benefit of our own community and for posterity.
The Heritage buildings are clearly a finite resource and an irreplaceable asset, once lost they cannot be replaced. Even where they are retained, the value of such buildings can be diminished, often irretrievably, by inappropriate works that erode their essential character or destroy or damage features of special interest.
Many of Heritage buildings are under great threat due to inadequate standards of maintenance and repair and the difficulty of finding viable new uses for vacant or underused buildings but in other areas the problem is often the opposite i.e. ill-informed and often inappropriate repair, restoration and alteration. Buildings which are neglected or remain untouched are paradoxically sometimes actually less at risk than those where a new owner plans to renovate and modernise. Many people embark on this sort of work with the very best of intentions. They see an unmodernised property as an opportunity to “restore it to its former glory”. Sadly the work that is undertaken often includes doing the wrong things or doing too much - often stripping away and replacing much of the original fabric of the building with adverse, if unintended, consequences for the property’s historic character and interest.
In my deliberation for next article, I share with you the method statement, how to achieve sustainable repairs.

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