According to the World Health Organization's 2002 World Health Report, ten types of indoor air pollution were identified. These issues can significantly impact your health and quality of life. Have you or your family experienced any of the following?
1. Waking up in the morning feeling tired, unwell, or even dizzy.
2. Family members frequently catching colds, even without direct exposure to smokers.
3. Feeling uncomfortable, with a sensation of foreign bodies in the throat, or difficulty breathing, even when not smoking or being around smoke.
4. Children experiencing frequent coughing, sneezing, and weakened immunity. In newly renovated homes, they may even avoid going back home.
5. Allergic reactions occurring more often among family members, which seem to be increasing over time.
6. Some family members suffering from illnesses that seem to improve when they leave their current environment.
7. Newlyweds struggling with infertility for a long time without finding a clear cause.
8. Fetal malformations occurring in otherwise healthy pregnancies.
9. Plants in the new home or after renovation dying quickly, showing yellowing or wilting leaves—some hardy plants also failing to thrive.
10. A strong, lingering odor in newly decorated or newly purchased homes that lasts for over a year, such as a pungent or irritating smell.
If you've noticed any of these signs, it might be an indication of poor indoor air quality. Taking steps to improve ventilation, using air purifiers, or reducing chemical use can make a big difference. It’s always better to be proactive about your health and the environment you live in.
Cement Superplasitcizer
Manufacturing method
Using methyl naphthalene and sulfur trioxide as raw materials, the product was synthesized by sulfonation, condensation, neutralization and drying.
The degree of polymerization of water reducing agent is generally about 6-12, that is: n= 6-12, if the degree of polymerization is 1-3, it is used as a dispersant.
Concrete admixtures can be divided into four categories according to their main functions:
1. Admixtures to improve the variable performance of concrete mixing: including various water reducing agents, air entrainment agents and pumping agents.
2. Adjusting concrete setting time, hardening performance of admixtures: including retarding agent, early strength agent, accelerator and so on.
3. The admixtures to improve the durability of concrete include air entraining agent, water repellent agent, and rust inhibitor.
4. Other additives to improve the performance of concrete: including air entrainment agent, expansion agent, antifreeze agent, colorant, waterproofing agent and pumping agent.
According to the naming and definition of (GB8075-87) admixtures, admixtures can be divided into 16 names, which are respectively defined as follows:
1. Ordinary water reducing agent: an admixture that can reduce the amount of water used in mixing under the condition of the same slump of concrete;
2. Early strength agent: the admixture that accelerates the early strength development of concrete;
3. Retarding agent: admixture for extending the setting time of concrete;
4. Air entraining agent: an admixture which can introduce a large number of uniformly distributed, stable and closed micro bubbles in the mixing process of concrete;
5. High efficiency water reducing agent: admixture which can greatly reduce the water consumption of the mixture under the same conditions of concrete collapse;
6. Early strength water reducing agent: both early strength and water reducing function of water reducing agent;
7. Retarding and water reducing agent: a water reducing agent with both retarding and water reducing functions;
8. Air-entraining and water-reducing agent: admixture with air-entraining and water-reducing functions;
9. Waterproofing agent: can reduce the water permeability of co
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