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A high-performance pumping concrete technology, applied in the field of white fiber high-performance C50 pumping concrete and fair-faced concrete, can solve the problem of reducing service life, safety, applicability and durability, increasing manpower, material resources and time costs, and concrete tower surface numbness Problems such as surfaces and cracks, to achieve good construction pumping performance, rich decorative effects, and less air bubbles
Pending Publication Date: 2020-11-10
HEFEI UNIV OF TECH +1
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[0002] As a key component of a cable-stayed bridge, concrete pylons are subject to performance limitations of traditional concrete materials and the impact of harsh construction environments, resulting in pockmarks and cracks on the surface of concrete pylons, which reduces the safety, applicability and durability of the service period.
At the same time, cable-stayed bri...
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Embodiment 1
[0035] The present embodiment C50 pumping concrete comprises the following components: cement 405kg / m 3 , fly ash 25kg / m 3 , slag fine powder 50kg / m 3 , silica fume 10kg / m 3 , basalt fiber 3.2kg / m 3 , Quartz sand 736kg / m 3 , gravel 1151kg / m 3 , Admixture 5.5kg / m 3 , mixing water 147kg / m 3 , titanium dioxide pigment 3kg / m 3 .
[0036] The performance parameters of the C50 pumped concrete obtained in this example are shown in Table 1.
Embodiment 2
[0038] The present embodiment C50 pumping concrete comprises the following components: cement 386kg / m 3 , fly ash 25kg / m 3 , slag fine powder 50kg / m 3 , silica fume 20kg / m 3 , basalt fiber 4.6kg / m 3 , Quartz sand 786kg / m 3 , gravel 1131kg / m 3 , Admixture 5.0kg / m 3 , mixing water 150kg / m 3 , titanium dioxide pigment 4kg / m 3 .
[0039] The performance parameters of the C50 pumped concrete obtained in this example are shown in Table 1.
Embodiment 3
[0041] The present embodiment C50 pumping concrete comprises the following components: cement 347kg / m 3 , fly ash 35kg / m 3 , slag fine powder 58kg / m 3 , silica fume 25kg / m 3 , basalt fiber 6.9kg / m 3 , Quartz sand 780kg / m 3 , gravel 1075kg / m 3 , Admixture 4.5kg / m 3 , mixing water 154kg / m 3 , titanium dioxide pigment 6kg / m 3 .
[0042] The performance parameters of the C50 pumped concrete obtained in this example are shown in Table 1.
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Abstract
The invention discloses white fiber high-performance C50 pump concrete, which comprises the following components: cement, fly ash, slag micro-powder, silica fume, basalt fiber, quartz sand, macadam, an additive, mixing water and titanium dioxide pigment. The white fiber high-performance fair-faced concrete prepared by the invention has the following characteristics: the white fiber high-performance fair-faced concrete has relatively strong tensile strength and ductility, the appearance is white and does not change along with time, the surface performance of fair-faced concrete is realized, bubbles are few, and color is uniform. The concrete disclosed by the invention is used as a concrete base material for a structure, mainly plays roles in pressure resistance, crack resistance, permeationresistance and attractiveness, and has a relatively high application value in the field of building and bridge structure concrete.
Description
technical field [0001] The invention belongs to the field of building and tower column structural materials, and relates to a high-strength, durable, crack-resistant mass-produced fair-faced concrete, in particular to a concrete that is suitable for long-span bridge cable tower projects and other gradient concrete structure projects. White fiber high performance C50 pumped concrete. Background technique [0002] As a key component of a cable-stayed bridge, concrete pylons are subject to performance limitations of traditional concrete materials and the impact of harsh construction environments, resulting in pockmarks and cracks on the surface of concrete pylons, which reduce the safety, applicability and durability of the service period. At the same time, cable-stayed bridges are mostly used as landscape landmark buildings. The traditional gray concrete towers are not aesthetically pleasing, which affects the coordination of the bridge with the natural and social environment....
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