Recently, Dunlop has launched two truck and bus tires in the domestic market. One of them is SP261 for trailer tires. This product is Dunlop's first wide-base tire launched in China. The tire is suitable for medium and long-distance fixed-load trucks. The size of this release is 425/65R22.5. In addition, Dunlop also introduced a new SP835 for the drive shaft. This tire is suitable for medium and long-distance fixed-duty trucks on general paved roads and highways. The size is 12R22.5. Hardening Accelerating Admixture Accelerators are used to increase the initial rate and speed of the chemical reaction between cement and the mixing water. Hardening accelerating admixture are used to reduce demoulding time or to speed access onto concrete floors and pavements and by this speed up the construction process. Hardening Accelerating Admixture,Hydrophilic Fibre Finishing Agent,Hydrophilic Polyester Copolymer,Hydrophilic Modifier For Amino Silicon Oil Liaoning Kelong Fine Chemical Co.Ltd. , https://www.kelongchemy.com
Accelerating admixtures can be used to increase either the rate of stiffening or setting of the concrete or the rate of hardening and early strength gain to allow earlier formwork striking and demoulding. Most accelerators achieve one rather than both of these functions.
Hardening accelerators are most effective at low temperature. Accelerators can be used with superplasticisers where early age strength is required, especially at lower temperatures.