Established with less than 100 employees primarily from the Center of applied research and construction engineering of the University of Civil Engineering.
Identify the direction of implementation of projects that require high expertise, differentiation, design and construction in “turn key contract.
Asserted competitive advantage over foreign contractors in the construction of bored piles.
Beginning of Topdown construction in Vietnam. Hanoi Inn (19 Pham Dinh Ho).
Developed the design consultancy area with the establishment of TT-As architectural consultancy joint stock company, Sacidelta joint venture with French partner.
Complete semi-topdown method, combined with diaphragm wall, barrette pile in basement construction.
Implementing the technology of post grouting to reinforced the pile bottom in Vietnam.
The quality management system received 9001: 2000 certification.
Conquer the buildings with the deepest and widest basement in Vietnam and Southeast Asia.
Development of advanced construction materials: Nucewall, polymer fiber, ultra-high UHPC concrete.
Encroachment into the field of real estate business. Established Bao Long Construction Investment and Trading Joint Stock Company, Ha Noi Sunrise Investment Development Joint Stock Company.
Established DELTA – V technology construction and application joint stock company, specializes in designing and executing large scale construction projects.
With a human resource of more than 2500 employees, spreading across the country, multi-industry businesses, becoming one of the Top 5 largest construction corporations in Vietnam.
In 1986, the new policy of Sixth Congress Party suggested, encouraging the development of economic sectors, releasing the production capacity of society to make way for the production improvement. DELTA was one of the first private Vietnamese enterprises to emerge from this innovation.
In January, while working as a director of the Center of Building Applications, Mr. Tran Nhat Thanh decided to establish DELTA Civil and Industrial Construction Co., Ltd. The extraordinary of DELTA is the corporation is a convergence of prestigious experts in the construction industry with the desire to bring accumulated knowledge, theoretical research into practical application. The firm’s direction is to solve difficult challenges which require the conscience and knowledge of high-level human resources, applying the most benefits of technology in construction.
Over the past twenty – five years of deveoplemt, DELTA has became a powerful Corporation with twelve subsidiaries, 2516 engineers, architects and systems of synchronous and modern machinery and equipment system. DELTA is the corporation with a high number of typical constructions along the country such as Bitexco Financial Tower, Dophin Tower, Keangnam Landmark, Sky City, Eden Center, Times City, Royal City, Goldmark City, Vinh Center City, Vinpearl Phu Quoc, etc.
DELTA Group is considered as the leading contractor in the tunnel construction and one of the five leading construction companies in the civil and industrial construction industry.
Those first days of new establishment period are full of challenges. If DELTA only solves the simple works, it would be very difficult to survive because unlike the state – owned companies, we have to fund our own capital to invest in buying machinery, assets and equipments. As leadership team said, competitive advantage is how company can accumulate knowledge and theoretical research in to the application and how to integrate technology and science to archieve business success.
In fact, the construction industry in Vietnam is very different from the foreign countries. Theoretical training is world – oriented but practical applications are very limited. Therefore, DELTA corporation always look in to the difficult fields requiring professional and solid knowledge.
Initially, the main DELTA’s objectives were small, difficult, high level of artistic and technical works. These include: Renovation of houses or offices building to become hotels (Huu Nghi Hotel, Xuan Hong Hotel); High – class interior: Minister’s reception room (Ministry of Forestry, Ministry of Social Affairs), etc. Building constructions following to the EU’s and the US’s standards (Press Club, Embassy of Canada, Sofitel Hotel Metropol Hotel, Hilton Hotel, Lake Side Hotel, Lake View, Victoria Sapa Hotel Chain, Can Tho, Chau Doc, etc.). DELTA takes responsibility for structural design, architectural implementation folowing to the “Key handed in” system (General Contractor). Because of this prestigious start, the domestic and foreign investors were very appreciated the quality of safety and art of the company.
Until now, with the high quality team of engineers who were trained in the domestic and foreign university environment plus their experience in management and construction through a series of works with different characteristics and characteristics, DELTA Delta has successfully co-ordinated with many investors, as well as consultants and project managers to jointly design the construction as well as coordinate the management and monitoring to achieve optimum efficiency for the projects that Delta participates.
From 1993-1994 when Vietnam began to develop tall buildings, small size piles were no longer suitable and some foreign contractors brought bored cast – in – place pile technology to Vietnam with very high construction costs (Drilling payment is around $200 – 500 per 1 meter long). After research, as subcontractor for foreign companies, DELTA has decided to import specialized equipment for bored pile work. In 1995, the first bored piles were Sheraton Hotel, Hanoi Inn. DELT guarenteed the absolutely save for their construction; moreover, the standards of DELTA’s buidings were equivalent to the performance of foreign companies. Because of that reason, the construction price was pulled down to only 50% less compared to the market price. This contributed greatly to the investor and society.
With a team of professional workers, equipment system and modern machinery synchronous; until now, DELTA has executed a plenty of constructions with the bored cash – in – place pile a long the country and has became the first ranked company in this sector. DELTA is the contractor for bored piling foundations for the tallest structures in Vietnam such as 68-storey Bitexco Finance Tower, 262 m high, 80 m deep underground foundation (2009), Keangnam Hanoi Landmark 72 floors, 350m high – pile foundation special 2m diameter, 85m deep (2011), Lotte Center Hanoi 72 floors, 267 m high (2010).
Top-down construction technology is the technology built underground part of the building with adifferent mehod from the traditional one: construction from the bottom up.
In the construction of Top-down technology, it is possible to simultaneously construct the basement (below the 0,00 scale) and the foundations of the works, while executing a finite number of floors, above the ground (on the ground). Using this method, the contractor will use the concrete floor in the basement as the surrounding wall system during the construction of excavating the basement.
On the ground: No need for arge excavation area or cost to do independent retaining wall. Especially for the traffic tunnel constructions, this method helps to quickly reconstruct road for traffic. Moreover, this method can correlate with up – up the upstream and top down for the underground (Common for civil works require basements) -> accelerate the construction progress.
Cost savings: No shoring is required to support the basement walls during excavation and construction of basements, not the cost of the side prop up system. This temporary barrier system is very complicated and expensive.
Fast construction progress: this method allows workers can execute the upper part of the building while constructing the basement and foundation. (Have to increase the foundation safety cost, if the company saved the money but still can not cover for the safe standards, top-down the underground first and then do the above as seen in Hanoi. After completing the ground floor, combany can seraprate the building’s body works and the basement works. Can execute the basement and the body at the same time.
The problems of the foundation (ground mud, groundwater, etc.): there is a note that in the urban often have many high-rise buildings, if open cut wall work, deep foundation, it will be necessary to lower the ground water level for the underground construction, which often results in the failure of high-rise buildings adjacent to the building (sliding, subsidence, cracking, etc.). -Down solves this problem. In addition, when the basement is already available ground floor can reduce some of the bad weather’s effects.
Derived from the RACBT Research Center of Building Applications (Construction University), the DELTA’s Design Department owns well – known structure architects and engineers with an up – to – date knowledge and experience in the process of project implementation of the company. DELTA at that time was the destination of most foreign construction companies looking for cooperation opportunities in Vietnam.
July 1, 1998 marked a new success of DELTA in the field of design consultancy with the establishment of Sacidelta Joint Venture with Sacieg Architectural Company in France. This event was absolutely necessary for the development of the company when most of the construction projects were then invested overseas.
From there, DELTA was developed even stronger because the company now could executes most of the work of a construction project: from a Concept design stage to the stage of construction management consultancy.
Then, on January 20, 2004, DELTA established another design company called TT – As – TT- Associates (Consultancy of Architecture and Construction company). TT-Associates has gradually affirmed its name and position on the architecture of Vietnam and the world.
At the beginning of the construction of the basement for high buildings, DELTA actively imported equipment and technology for reinforced concrete wall in the soil (Diaphragm wall, barrette pile) solve the problem of retaining wall for the deep basements. Delta is proud of being the first construction company in Vietnam to successfully implement barrette piles, diaphragm wall in soil. Since 2001, Delta has constructed over 30 projects using Barrette pile structure, diaphragm walls on various geological with complexes and different difficulties.
About the technology off building deep basements, familiar solutions are bottom up or top-down. These are relatively advanced technologies used in the world and DELTA has focused on calculating more appropriate and cost-effective solutions for each type of building. The common solutions above usually extend the construction and cost of shoring or earth anchoring. DELTA has been researching the use of a minimum of basement floor instead of a shoring system, reducing construction time and costs. After that, And the solution of deep underground construction with semi-topdown technology was invented. In many specific projects, this solution has many advantages to bring about great economic effects: no need for earth support or anchor systems such as bottom-up method, fast execution time.
The construction projects with very difficult conditions are treated absolutely safe by semi-topdown method as Apricot Hotel (Old Phu Gia) 5 basement by the Hoan Kiem Lake (2012), Trade Center Market On 19/12, there are 5 basements of 41 Hai Ba Trung (2011), EDEN Shopping Center with area of 8800m2 with 6 basements (the deepest basement in Ho Chi Minh City). The successful project under this method is the Royal City project with basement area of 110,000m2, 5 basements, 25m deep (600,000m2 basement), 7 buildings with 30-40 floors. The entire project was completed within 32 months.
Currently, this method is also a DELTA project 6 basement at the D’Le Roi Solei project at 2 Dang Thai Mai, Hanoi and many other projects.
It was first applied in Vietnam in 1998 at the My Thuan Bridge project by contractor called Baulderstone Hornibrook Engineering in Australia, but at that time large number of companies of Vietnam could not access this technology. Delta was the first Vietnamese corporation to apply and successfully deploy this technology in Vietnam in 2003 at Ever Fortune Plaza, 83B Ly Thuong Kiet, Hanoi. Delta has implemented this technology widely in Vietnam in many projects and achieved outstanding advantages is to increase from 60% to 150% load capacity of the pile to achieve high level of economic efficiency in construction.
Some constructions using bored pile technology:
– Sky City Tower; No. 88 Lang Ha-Hanoi; Invested by Hanotex Co., Ltd: 272 bored piles D1000, D1200, D1400 with 48m deep.
– Dolphin Plaza; No. 28 Tran Binh- Tu Liem Dist. Hanoi; TID Joint Stock Company as an investor: 157 Bored pile D1500.
– The complex of public utilities, offices and houses; Mai Dich Guild – Cau Giay Dist. Hanoi; Developed by Ha Hai Construction Joint Stock Company: 136 piles.
– New Skyline; Lot CC2 – Van Quan – Yen Phuc Area, Van Mo – Hanoi; Developed by the Corporation for Housing and Urban Development (HUD): 119 Bored pile D1500.
– Apartments for offices, commercial centers and housing; Lot B-CQ1, Van Quan – Yen Phuc area, Van Mo – TP. Hanoi; Joint Stock Company BIC Vietnam: 75 bored piles D1200 with 80m deep.
“”With the motto of safety – quality – progress – price, DELTA company is committed to providing high quality products with reasonable price, satisfying the requirements of customers, and constantly improve activities’ quality to enhance customer satisfaction.”
In 2006, the DELTA production management system achieved the Afnor Certification certification that satisfies the requirements of ISO 9001: 2000. This is a real testimony to DELTA’s commitment to customers on the quality of products and services as well as the protection for the environment. Continuous development with the largest projects ever in Vietnam requires the transition in all aspects of governance, technological innovation, and human dynamics. Changing the new management paradigms is necessary, but DELTA always defines the corporation’s own principles: “Conscience and Knowledge.”
DELTA not only strictly adheres to the latest requirements of the most up-to-date quality management system, but also has advanced management tools for the system. So far, DELTA has the most needed certificates for all company’s business areas.
From this moment, more more DELTA member companies were established, starting to invest in different industries which are strongly support for each other. Moving on to the obvious goal of making DELTA a fully-owned construction company in the construction industry, independent from all the objective factors.
Delta-M Building Materials and Trading Joint Stock Company: manufacturing and supplying concrete for construction works. With the experience of operating concrete batching plants in service of its own needs, DELTA-M has also confirmed the quality of the company’s service with the guideline that care for customers.
Nucetech Hi-tech Construction Materials Trading Joint Stock Company (Nucetech-CT) deals with construction chemical materials. The Nucemix brand of the company has been granted the title of protection by the intellectual property department to be competed with imported products by quality and economy.
Grocery and Labor Safety Joint Stock Company: Trading, manufacturing and directly importing high quality protective equipment for construction works. This unit directly participates in supplying labor protection and auxiliary materials for the other units of the group.
In a speech by Minister of Construction Trinh Dinh Dung, DELTA is considered as a leading contractor of prestige, quality, progress and efficiency in building basement in Vietnam. This proves that the leadership has been well-oriented and well ahead of time, creating a team of technicians, skilled workers and have a wide knowledge of new technology.
It can be said that DELTA has done many projects with deep basements and difficult construction conditions throughout the country, has accumulated enough experience, techniques to execute and handle any type of underground constructions. Delta has successfully constructed a series of deep basements in buildings with a variety of difficult conditions: the deepest basement in Vietnam; Deep underground tunnels in the street, 5-6 storeys tunnels built in areas with high groundwater, weak geology.
It is the Apricot Hotel (Old Phu Gia) with 5 basements by the Hoan Kiem Lake (2012), Trade Center 19/12 with 5 basements located at 41 Hai Ba Trung (2011), EDEN Trade Center area 8800m2 ground floor with 6 basements (the deepest basement in Ho Chi Minh City); D ‘. Le Roi Soleil with 6 basements adjacent to West Lake; Vinhomes Nguyen Chi Thanh, and Southeast Asia’s largest basement is Royal city with 5 basements, 120,000m2.
Nowsaday, so many Vietnamese companies choose suitable technologies for investment such as wall tiles, sanitary equipment, piping systems, M & E equipment, etc. As a contractor specializing in construction, DELTA focuses on developing new materials. There are several areas:
– POLYME STEEL MATERIALS: This is a very new material in the world made of glass and polymer, which can withstand the dislocation 3 to 4 times higher than ordinary steel, very light weight (20 -25% lighter than the ordinary) and can not be rusty, especially with th marine environment constructions (embankment, underground works, works on the island). DELTA has been involved in establishing, building the first factory in Vietnam and started putting this material into practical application.
– High Intensity Concrete (UHPC Super Concrete): This type of concrete has a compressive strength of up to 150MPA (4-5 times higher than the conventional concrete). DELTA has established and built a factory to produce this material. The application of the material is suitable for special works, large span crossing works, or structures requiring high bearing capacity (which can be replaced by steel structures), light weight or natural the decoration of replacing natural stone.
– Nucewall-15: In accordance with the general policy of gradually removing manual brick, in the market, many substitutes for bricks are aggregate bricks, non-burnt brick, reinforced concrete wall, etc. DELTA focused on on the production of lightweight wall panels Nucewall 15. This type of wall panel has many advantages: lightweight, soundproof, good insulation, easy assembly, very economical in terms of labor costs construction was increasing to a very high point. Nucewall-15 wall panels have already begun to be used in hotel and residential buildings.
Apart from being a professional contractor, Delta is also involved in the field of real estate investment and trading and has created a great reputation for customers through the outstanding product quality created by the company.
With the advantage of the contractor specializing in building construction and trading of construction materials, DELTA is absoulutely confident in the field of real estate business. Bao Long Construction Investment and Trading Joint Stock Company was established as a tool for the group to carry out the investments and real estate management. Then, DELTA participated in purchasing dominant shares of Ha Noi Sunrise Investment Development JSC, a long experienced enterprise in this field. And recently, DELTA has become the dominant shareholder of the Northern Textile Garment Joint Stock Company. This unit owns many promising real estate projects in Hanoi.
As an investor and also a general contractor of so many projects, DELTA were owned a large number of ‘golden land”, which affirmed the true development direction of the Group Leadership team.
As society grows, more and more new urban areas are developed, planned and comprehensive, meeting the different needs of residents for a modern and dynamic life. State planning also gives priority to urban areas rather than single buildings
In 2014, DELTA-V Technology Application and Construction Joint Stock Company was set up to focus on the best servings for customers. Operating the new engine and focusing on only target customers, DELTA-V immediately brought benefits to investors are reputable real estate agents.
The year 2017 promises to recognize the explosion of the corporation. That is the result of the attention to investment sustainable development, the strong transformation in the restructuring over a long period of time.
DELTA with the prestige of “conscience and knowledge” reached Top 10 Vietnam Construction Brand. Investors consistently seek to deliver their constructions to DELTA with absolute trust in success. Subsidiaries after a period of stability, the product development of production has brought the first results.