CONCRETE MAINTENANCE METHODS

Date Submitted: 30/08/2024 02:27 PM

CONCRETE MAINTENANCE METHODS

Concrete plays an important role in modern construction projects. To ensure concrete achieves optimal strength and durability, proper curing is extremely important. This process not only helps concrete achieve the desired technical properties but also contributes to extending the life of the project.

Concrete maintenance is an important step in the construction process, directly affecting the quality, durability and longevity of concrete. This article will analyze in detail concrete curing methods and their importance in ensuring construction quality. Follow the article below with Hung Nghiep Phu to learn how to maintain concrete!

1. Why is it necessary to maintain concrete?

Actually we know that the reaction of cement and water is called hydration, and its exothermic reaction releases (heat) so after adding water to the concrete mix the hydration process starts, making Allow the concrete to dry due to the exothermic reaction from the concrete mixture. there for us to cure the concrete to keep it moist.

2. When to start curing concrete?

After the concrete pouring process is completed and the concrete has a shape, you need to immediately cover its surface with moistened materials. At this time, you do not need to water the surface of the structure to avoid damaging the surface. After 24 hours, you can proceed to spray the surface of the mixture with mist. Moisture retention can be done by coating the surface in sunny weather conditions, or the surface may not be needed but regular monitoring is still required to avoid dehydration and cracking of the concrete surface.

3. What is the curing time of concrete?

The minimum time for concrete to reach maximum strength is 28 days.

Bảo dưỡng bê tông thời gian và phương pháp bảo dưỡng

Concrete can get 50% strength, when we cure for 3 to 7 days; and 75% compressive strength after 14 days and 90% strength can be achieved after 28 days.

4. Concrete curing methods

We can use certain methods to keep concrete moist.

4.1. Moisturizing measures

4.1.1 Pond method

This method we can use in floor slabs. Use in a small pond on the floor to keep the floor moist.

4.1.2 Wet coating

This method is suitable for concrete structures; Use this method especially for columns, baseboards and bottom surfaces of floors. And we use it to cover the concrete to keep it moist.

Bảo dưỡng bê tông thời gian và phương pháp bảo dưỡng

4.1.3. Watering

Watering is a simple but effective concrete maintenance method. The principle of this method is to maintain moisture on the concrete surface so that the hydration process of cement continues. Watering needs to be done continuously for a period of 3 to 7 days, depending on weather conditions and technical requirements of the project. To ensure effectiveness, it is necessary to use watering equipment that can distribute evenly and does not cause erosion of the concrete surface.

4.1.4. Use plastic film or wet cloth

Applying plastic film or wet cloth to the concrete surface is another effective curing method. Plastic film has good moisture retention properties and protects concrete from rapid evaporation due to heat or wind. Wet fabric, usually canvas or geotextile, has the same effect. It is necessary to ensure that the coating is completely sealed and does not move during curing.

4.2. Use chemicals for maintenance

4.2.1. Concrete curing agent

Concrete conditioners are chemical products that are sprayed onto the concrete surface after the concrete has partially hardened. These substances create a thin film on the concrete surface, helping to reduce water evaporation and prevent the appearance of cracks. Maintenance agents usually come in two main forms: film-forming agents and water-absorbing agents. Choosing the right chemical depends on the environmental conditions and technical requirements of the project.

4.2.2. Benefits and applications

Using curing chemicals not only helps maintain concrete moisture but also improves concrete surface quality, reduces crack development and improves waterproofing. These products are typically applied immediately after the concrete begins to reach the required hardness, helping to ensure effective and uniform hydration.

4.3. Measures to improve the environment

4.3.1. Keep the right temperature

Temperature is an important factor affecting the hydration of concrete. In cold weather, concrete can harden too quickly, leading to the formation of cracks and loss of strength. To overcome this, measures such as heaters, insulation panels, or thermal heating systems can be used to maintain the ambient temperature around the concrete between 10 and 30 degrees Celsius. In hot weather conditions , cooling measures such as water spraying or using sun screens are needed to reduce the temperature of the concrete surface.

4.3.2. Avoid direct sunlight

Direct sunlight can cause concrete to dry too quickly, leading to the risk of cracking and loss of strength. To protect concrete from sunlight, shielding materials such as tarpaulins, sun screens, or heat-reflective materials can be used. Covering also helps reduce the risk of being affected by other weather factors such as strong winds or rain.

5. Factors affecting concrete curing

- Weather conditions

Weather has a great influence on the curing process of concrete. Hot sun and strong winds can cause concrete to dry too quickly, while rain or high humidity can cause other problems. To cope with adverse weather conditions, flexible maintenance plans and appropriate protective measures are needed.

- Cement type and concrete composition

The type of cement and the composition of the concrete mix also affect the curing process. Some types of cement and admixtures may require special curing methods to achieve optimal performance. Choosing the right concrete ingredients and applying the corresponding curing methods is very important.

6. Conclude

Concrete maintenance is an essential element in the construction process. Curing methods such as moist curing, using curing chemicals and improving environmental conditions play an important role in ensuring that concrete achieves optimal quality and durability. To achieve best results, curing measures should be implemented immediately after the concrete is placed and maintained for as long as necessary, and curing methods should be adjusted based on environmental conditions and requirements. project engineering.

By understanding and properly applying concrete curing methods, contractors and construction engineers can ensure that concrete structures not only meet technical requirements but also have a long lifespan, contributing to contribute to the sustainability of construction projects.

The importance of construction units is undeniable because their reputation will ensure the quality and aesthetics of your project. Today, there are many units providing construction design services to meet the increasing construction demand in our country. Therefore, finding a reputable unit is not easy and requires you to spend time researching. During the selection process, you need to research carefully and ensure that the accompanying unit must have high professional qualifications, many years of experience, have a clearly signed contract, transparent costs,... To helps customers save time searching, Công ty TNHH Đầu tư Xây dựng Hưng Nghiệp Phú confident that it will be the best choice for you.

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Hung Nghiep Phu Construction Investment Co., Ltd. with the mission of bringing the best solutions and services, building a prosperous community with customers, Hung Nghiep Phu is gradually asserting its brand through cooperation. Sincere cooperation, with a leadership team with ethical capacity, creativity, dedication to the profession and strategic vision. Hung Nghiep Phu owns a team of skilled and highly qualified staff who will bring customers the best quality projects.

Hung Nghiep Phu Construction Investment Company Limited - specializes in constructing civil and industrial projects. We look forward to accompanying customers in construction projects as well as legal procedures such as planning diagrams, applying for construction permits, completing processes, and applying for fire prevention and fighting certificates,... If you have any questions or are in need of designing or completing the process, please contact us immediately for a free consultation!

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COMPLETING MATERIALS	BASIC PACKAGE	ADVANCED PACKAGE
CERAMIC TILES
Tiles line the floors	600x600 tiles Unit price < 250,000 VND/m2	800x800 tiles Unit price < 350,000 VND/m2
Toilet floor tiles, toilet wall tiles	Lining tiles 300x300 Tiles 300x600 Unit price < 130,000 VND/m2	Lining tiles 400x400 Tiles 400x800 Unit price < 200,000 VND/m2
WATER PAINT
Outdoor (2 layers of mastic, 1 layer of primer, 2 layers of paint)	Maxilite paint, Expo, Viet My putty Unit price < 1,150,000 VND/18L barrel	Nippon paint, Nippon powder Unit price < 1,750,000 VND/ 18L barrel
Indoors (2 layers of mastic, 1 layer of primer, 2 layers of paint)	Maxilite paint, Expo, Viet My putty Unit price < 700,000 VND/18L barrel	Nippon paint, Nippon powder Unit price < 950,000 VND/18L barrel
DOORS - WINDOWS
Doors to the rooms	Industrial wooden doors, steel core plastic doors Unit price < 3,500,000 VND/set	High quality industrial wooden doors, xingfa VN aluminum doors Unit price < 4,500,000 VND/set
Toilet door	Aluminum door system 700 Unit price < 3,200,000 VND/set	Steel core plastic doors, xingfa VN aluminum doors Unit price < 4,500,000 VND/set
Doors, front windows	Steel core plastic doors, xingfa VN aluminum doors Unit price <1,700,000 VND/m2	Guangdong Xingfa aluminum doors, Kinlong accessories Unit price <2,300,000 VND/m2
Window protection frame (Includes facade only)	Iron box 12x26 oil painted, simple pattern Unit price <500,000 VND/m2	Iron box 12x26 oil painted, galvanized, simple design Unit price <600,000 VND/m2
Lock the door	Round handle Unit price <350,000 VND/piece	Lever handle Unit price <450,000 VND/piece
STAIR
handrail	Iron railing, oak handrail Unit price <1,100,000 VND/m	8 mm tempered glass railing, wooden handrail Unit price <1,450,000 VND/m
Granite bridge steps ladder	Suoi Lau white stone, Binh Dinh Unit price <750,000 VND/m2	Cambodian black stone, Gia Lai pink stone Unit price <950,000 VND/m2
ELECTRICAL EQUIPMENT
General electrical cabinet cover, floor electrical cabinet	SINO	SINO
Socket	SINO	PANASONIC
Internet socket, wifi	SINO	PANASONIC
Lights lit	9W ultra-thin LED light Unit price <90,000 VND/piece	9W ultra-thin LED light Unit price <130,000 VND/piece
Stair and balcony lights	The homeowner chooses Unit price <350,000 VND/piece	The homeowner chooses Unit price <450,000 VND/piece
SANITARY EQUIPMENT - WATER
Toilet table	Vilacera, Ceasar, Inax… Unit price <3,000,000 VND/piece	Inax, Caesar… Unit price <4,000,000 VND/piece
Lavabo + exhaust set	Vilacera, Ceasar, Inax… Unit price <1,100,000 VND/piece	Inax, Caesar… Unit price <1,600,000 VND/piece
Lavabo drain faucet	Vilacera, Ceasar, Inax… Unit price <700,000 VND/piece	Inax, Caesar… Unit price <1,200,000 VND/piece
Hot and cold shower	Stainless steel 304 Unit price <1,500,000 VND/piece	Stainless steel 304 Unit price <2,200,000 VND/piece
Toilet spray nozzle	Plastic faucet Unit price <200,000 VND/piece	Stainless steel faucet Unit price <300,000 VND/piece
Floor collection hopper	Stainless steel 304, anti-foul Unit price <200,000 VND/piece	Stainless steel 304, anti-foul Unit price <300,000 VND/piece
Sink	nox 304 Unit price <1,500,000 VND/piece	Stainless steel 304 Unit price <2,500,000 VND/piece
Sink faucet	Stainless steel 304 Unit price <500,000 VND/piece	Stainless steel 304 Unit price <300,000 VND/piece
Stainless steel water tank	Dai Thanh 1000L Unit price <6,000,000 VND/piece	Dai Thanh 1500L Unit price <8,500,000 VND/piece
Foot supporting the water tank	V5 steel is 1.8mm thick Unit price <2,000,000 VND/piece	V5 steel is 1.8mm thick Unit price <2,000,000 VND/piece
Water pumps	Panasonic 200w Unit price <2,000,000 VND/piece	Panasonic 200w Unit price <2,000,000 VND/piece
Hot water plumbing system	Vesbo tube	Vesbo tube
Solar water heater	Solar machine 130L Unit price <8,000,000 VND/piece	Solar machine 160L Unit price <9,000,000 VND/piece
Air conditioner copper pipes	7 gem slicer Volume < 40m Unit price <270,000 VND/m	7 gem slicer Volume < 50m Unit price <270,000 VND/m
OTHER ITEMS
plaster ceiling	M29 VT frame, Vinh Tuong Gyproc plate Unit price <160,000 VND/m2	TK4000 VT frame, Vinh Tuong Gyproc panels Unit price <170,000 VND/m2
balcony	Iron railings, iron handrails Unit price <900,000 VND/m2	8mm tempered glass railing, 304 stainless steel handrail, 40x80 box Unit price <1,300,000 VND/m
Gate	Iron box 1mm thick, simple model Unit price <1,400,000 VND/m2	Iron box 1.2mm thick, optional model Unit price <1,700,000 VND/m2
Iron frame roof for light stair	Iron box 20x20x1mm Unit price <600,000 VND/m2	iron box 25x25x1.2mm Unit price <800,000 VND/m2

COMMON ITEMS NOT INCLUDED IN THE COMPLETE QUOTE
Direct water heater	Balustrade of atrium, rear front window
Rolling doors, sliding doors	Materials for finishing decorative walls, then painted with water
Kitchen cabinets, wall cabinets	Decorative chandeliers, night lights, painting spotlights
Interior equipment (Bed, cabinet, shelf, bar...)	Household appliances (Air conditioner, gas stove, smoke extractor...)
Small garden landscape	Types of paint other than water paint (oil paint, imitation stone, imitation wood sprayed with spikes, brocade...)
Sanitary accessories	Technological equipment (Camera, security, fire protection...)
Laminated panels decorate the facade and terrace	Other items besides the finishing materials table

DETAILS OF ROUND PART MATERIALS
STT	Supplies	Construction of townhouses
1	Iron and Steel	Viet Nhat POMINA
2	Cement	INSEE: For concrete work Ha Tien: For concrete work
3	Tuynel brick	TAM QUNH QUOC TOAN Standard size: 8x8x18
4	Dong Nai Stone	10mm x 20mm: For concrete work 40mm x 60mm: For foundation work
5	Cement	Holcim, Ha Tien
6	Concrete	Commercial product: For foundation work, tunnel walls, beams, floors, stairs... for projects with permitted site Mixing machine: For columns, other items
7	Golden sand	Large-grained washed sand: For concrete work Sand mi: For bowl construction work
8	Hard tube	In concrete: use VEGA hard pipes
9	Hard tube	SINO MPE: wire flow in Beams - Walls
10	Water pipe	Binh Minh Tien Phong Includes: Co, Te, valve lock release, connection...
11	Electric wires - cables	CADIVI: type 1 electric wire, 7 copper cores SINO: television, telephone, internet cables
12	Waterproofing	SIKA LATEX KOVA CT 11A