Which of the following dental cements is used as a luting and base cement and is high in strength?

Which of the following dental cements is used for its sedative effect on the dental pulp and comes in two types (one use for temporary restorations and one that is reinforced and used for permanent restroations)?

(a) Name the major raw materials used in the manufacture of the following:(i) polythene(ii) margarine(iii) cement

General concrete knowledge:   HE stands for High Early Strength Cement.  Select all of the correct statements regarding HE cement.  Marks are awarded for each correct selection, but are deducted for incorrect selections.  Total marks awarded for this question will not be less than zero. a. Strength achieved at 7 days by concrete using HE cement is lower than the strength achieved at 7 days when using GP cement. b. Concrete made with HE cement is suitable for use in situations where it is beneficial to strip formwork early. c. Concrete made with HE cement produces greater heat of hydration than GP cement. d. Concrete made with HE cement produces less heat of hydration than GP cement. e. Concrete made with HE cement is suitable for use in thick concrete elements. f. Concrete made with HE cement is suitable for use in situations where there are low ambient temperatures (eg:  colder climates, early morning pours etc.) g. Strength achieved at 7 days by concrete using HE cement is higher than the strength achieved at 7 days when using GP cement.

Which of the following mortars are used for high-strength masonry?Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.aMbScNd

Which of the following mortars are used for high-strength masonry?Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer.aMbScNdK