Нізкія і звышнізкія цэментныя канструкцыі

Low and ultra-low Cement Castables have the characteristics of small pore size, large density, good volume stability, высокая трываласць, and a small amount of water. They overcome the characteristics that the strength of ordinary castables decreases significantly at 800~1200 ℃, increases with the increase of temperature, and have excellent thermal shock resistance, slag resistance, and corrosion resistance.

Фізіка-хімічныя паказчыкі

Пункт		Паказальнік
		Гліна	Высокі гліназём	Карунд
Ал2О3  %		≥45	≥75	≥98
CaO %		＜1.8	＜1.5	＜1.0
Насыпная шчыльнасць г/см3	110℃×24 гадзіны	≥2.3	≥2.6	≥3.1
	1350℃×3h	≥2.26	≥2.61	/
	1550℃×3h	/	/	≥3.00
Трываласць пры халодным раздушванні МПа	110℃×24 гадзіны	≥70	≥75	≥85
	1350℃×3h	≥85	≥90	/
	1550℃×3h	/	/	≥100
Flexural Strength MPa	110℃×24 гадзіны	≥6	≥8	≥9
	1350℃×3h	≥8	≥9	/
	1550℃×3h	/	/	≥11
Permanent linear change Rate %	1000℃×3h	-0.3	-0.2	-0.2
	1350℃×3h	±0.3	±0.5	/
	1550℃×3h	/	/	±0.5
Maximum service temperature ℃		1450	1600	1800

Low and ultra-low cement castable features

1. Высокая вогнеўстойлівасць, высокая тэмпература, і ўстойлівасць да нізкіх тэмператур
2. Устойлівасць да эрозіі, ўдаратрываласць, высокая зносаўстойлівасць, высокая трываласць
3. Моцная пластычнасць, можна адліць у любую форму
4. Добрая паветранепранікальнасць, можа паменшыць страты цяпла і зэканоміць энергію

How to use castables？

Castables are generally poured and formed by on-site pouring, vibration, or tamping during use, and can also be made into prefabricated parts for use.

Low and ultra-low cement castables advantage

Low and ultra-low cement castables have strong cohesive force, long initial setting time and construction operation time, fast strength growth, strong impermeability, no need for acid treatment, easy to ensure the compactness of masonry ash gaps, and can significantly improve the blast furnace lining The airtightness of the wall, and the anti-corrosion ability of the lining.

Scope of application of castables

Low and ultra-low cement castables can be used in the steel industry, petrochemical industry, metallurgical industry, and power plant industry, with wide application and little restriction.

About the packaging of low cement castables

Rongsheng Refractory Factory supports the customization of castable packaging sizes and packaging printing. The physical and chemical indicators of the castable need to be determined before packaging and the packaging specifications need to be sent. I will customize it as required.

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