Cement, well some dream interpretion sites would say
your colon is congested
another would indicaste that your Understanding
(as represented by the mother figure)
is solid and clear
still another may see you as unyeilding and inflexible.
Money, (is the root of all evil?) no, it is a very basic
necessity in the society and yes, the world in which we live.
I do question the implication that this is the main purpose of existence,
or is it just the main purpose of this little journey with your mom?
I don't get the cement making parahenalia on the ground
can you get more descriptive?

You meet the owner of the cement factory.
It is a woman, and your mom is no longer in the picture.
You SEEM to know her (but do you? really?)
She is part of you, according to dream analysis, everything in your dream
is part of you. (Then why do I want to claim to be this woman?)
She takes you to a kitchen and tells you it Might be Used as a Desk?
(This lady's making no sense to me at all!)
The portal, is also a p/ass through,(hmm, some connection to excretation?)
But is also a Desk upon which to conduct Business? (or is that busy ness,
the Appearence of being busy, but not really accomplishing anything?)
Blueprints, It is Clear this woman has Plans.
(butt of what, covering the world with cement?)(I don't trust her, DO YOU?)
Perhaps she is only seeking approval?
Your mother, on your right represents understanding, and your fiancee(?)on your left
represents wisdom. The mans shirt color seems to be a blend of devotion and valor.
He Might represent YOUR Higher Self.(if you are comfortable with that)
He referes to the OWNER of the cement factory as your Friend.
(are YOU sure you want to be associated with this woman, don't think I do)
Of course your came with your mom. (This is the woman you BONDED with since birth.)
There appears to be some age difference between you and your intended.
You fail to elucidate, so I assume it isn't too important.

The woman at the desk is where? facing you? or are you standing behind her? None the less she knows that there is a difference between, persona and shadow.
She knows she's been projecting hers. She wants more sunshine in the form of friends in her life, perhaps even needs some support.

My final analysis?
Honey, there's absolutley nothing wrong with you.
(But perhaps you need to choose your friends more wisely.)

Blessings,
mam