The use of an anchor sheet in road construction opens up new opportunities, significantly extending the service life of a parapet-block barrier and reducing maintenance costs.
Parapet blocks are concrete elements installed on road shoulders and central reservations to create a barrier. However, reinforced-concrete parapet blocks are often exposed to the aggressive effects of salts and other de-icing agents used during winter. During snowmelt and rainfall, these substances penetrate the concrete structure, causing corrosion and deterioration.
Lining a parapet block with V-LOCK anchor sheet, manufactured in accordance with ТУ 2246-003-56910145-2014, protects concrete surfaces from chemical agents, abrasive wear and corrosion.
| Technical and economic comparison of barrier solutions over 24 years of operation | |||
| The calculation for a road section with a barrier was made for 100 m | |||
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Cost category |
Options |
Difference in indicators |
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|
Reinforced-concrete parapet barrier, thousand RUB |
Lined parapet barrier, thousand RUB |
In monetary terms, thousand RUB |
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Capital costs |
2 437, 69 |
3 554, 54 |
1 116, 85 |
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Operating costs Including: a) cleaning the barrier of dust and dirt: with water from a hose; b) cleaning the barrier of snow and dirt manually; c) applying vertical markings: to the reinforced-concrete barrier (with cleaning); d) filling cracks, cavities and chips: on the surfaces of reinforced-concrete barriers. ! The lined parapet barrier requires only costs a and b. |
10 572, 68 |
2 544, 26 |
- 8 028, 42 |
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Total discounted costs over 24 years |
13 010, 37 |
6 098, 81 |
- 6 911, 56* |
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*The monetary saving will amount to 6 911, 56 thousand RUB over 24 years of operation of the barrier using lined parapet blocks. |
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Factory production of a New Jersey-type parapet barrier using V-LOCK anchor sheet provides a number of advantages:
- the option of manufacturing to individual dimensions;
- combining the production of high-quality reinforced-concrete products with anchor-sheet lining under factory conditions;
- a significant reduction in the costs of maintaining and repairing structures;
- increased intervals between repairs and an extended service life of the structure;
- high aesthetic appeal;
- the option of producing the barrier in various signal colours and adding reflective elements to the structure, increasing road safety;
- resistance to the aggressive effects of salts and other de-icing agents that can destroy the concrete structure.
